diff --git a/BUILD b/BUILD
index b4cd98e6da8..315271cd692 100644
--- a/BUILD
+++ b/BUILD
@@ -151,11 +151,11 @@ config_setting(
 python_config_settings()
 
 # This should be updated along with build_handwritten.yaml
-g_stands_for = "gridman"  # @unused
+g_stands_for = "garum"  # @unused
 
 core_version = "25.0.0"  # @unused
 
-version = "1.47.0-dev"  # @unused
+version = "1.48.0-dev"  # @unused
 
 GPR_PUBLIC_HDRS = [
     "include/grpc/support/alloc.h",
diff --git a/CMakeLists.txt b/CMakeLists.txt
index e7aa97e9fcf..c7ed9c0934c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -25,13 +25,13 @@
 cmake_minimum_required(VERSION 3.5.1)
 
 set(PACKAGE_NAME          "grpc")
-set(PACKAGE_VERSION       "1.47.0-dev")
+set(PACKAGE_VERSION       "1.48.0-dev")
 set(gRPC_CORE_VERSION     "25.0.0")
 set(gRPC_CORE_SOVERSION   "25")
-set(gRPC_CPP_VERSION      "1.47.0-dev")
-set(gRPC_CPP_SOVERSION    "1.47")
-set(gRPC_CSHARP_VERSION   "2.47.0-dev")
-set(gRPC_CSHARP_SOVERSION "2.47")
+set(gRPC_CPP_VERSION      "1.48.0-dev")
+set(gRPC_CPP_SOVERSION    "1.48")
+set(gRPC_CSHARP_VERSION   "2.48.0-dev")
+set(gRPC_CSHARP_SOVERSION "2.48")
 set(PACKAGE_STRING        "${PACKAGE_NAME} ${PACKAGE_VERSION}")
 set(PACKAGE_TARNAME       "${PACKAGE_NAME}-${PACKAGE_VERSION}")
 set(PACKAGE_BUGREPORT     "https://github.com/grpc/grpc/issues/")
@@ -295,7 +295,7 @@ endif()
 if (gRPC_XDS_USER_AGENT_IS_CSHARP)
   # The value of the defines needs to contain quotes.
   # See https://github.com/grpc/grpc/blob/fbf32836a418cc84f58786700273b65cb9174e1d/src/core/ext/xds/xds_api.cc#L854
-  add_definitions("-DGRPC_XDS_USER_AGENT_NAME_SUFFIX=\"csharp\"" "-DGRPC_XDS_USER_AGENT_VERSION_SUFFIX=\"2.47.0-dev\"")
+  add_definitions("-DGRPC_XDS_USER_AGENT_NAME_SUFFIX=\"csharp\"" "-DGRPC_XDS_USER_AGENT_VERSION_SUFFIX=\"2.48.0-dev\"")
 endif()
 
 if(UNIX AND NOT HAIKU)
diff --git a/Makefile b/Makefile
index bb9b3eb6d10..9ff5b20bb91 100644
--- a/Makefile
+++ b/Makefile
@@ -447,8 +447,8 @@ Q = @
 endif
 
 CORE_VERSION = 25.0.0
-CPP_VERSION = 1.47.0-dev
-CSHARP_VERSION = 2.47.0-dev
+CPP_VERSION = 1.48.0-dev
+CSHARP_VERSION = 2.48.0-dev
 
 CPPFLAGS_NO_ARCH += $(addprefix -I, $(INCLUDES)) $(addprefix -D, $(DEFINES))
 CPPFLAGS += $(CPPFLAGS_NO_ARCH) $(ARCH_FLAGS)
diff --git a/_metadata.py b/_metadata.py
index e2ffc1fbc15..1112a05cdf9 100644
--- a/_metadata.py
+++ b/_metadata.py
@@ -14,4 +14,4 @@
 
 # AUTO-GENERATED FROM `$REPO_ROOT/templates/_metadata.py.template`!!!
 
-__version__ = """1.47.0.dev0"""
+__version__ = """1.48.0.dev0"""
diff --git a/build_handwritten.yaml b/build_handwritten.yaml
index 511a0a53058..9fd7796a9b8 100644
--- a/build_handwritten.yaml
+++ b/build_handwritten.yaml
@@ -14,9 +14,9 @@ settings:
   '#10': See the expand_version.py for all the quirks here
   core_version: 25.0.0
   csharp_major_version: 2
-  g_stands_for: gridman
+  g_stands_for: garum
   protobuf_version: 3.19.4
-  version: 1.47.0-dev
+  version: 1.48.0-dev
 targets:
 - name: gen_hpack_tables
   build: tool
diff --git a/config.m4 b/config.m4
index ca0bc4e3283..397f6ea78bd 100644
--- a/config.m4
+++ b/config.m4
@@ -1161,7 +1161,7 @@ if test "$PHP_GRPC" != "no"; then
     -D_HAS_EXCEPTIONS=0 -DNOMINMAX -DGRPC_ARES=0 \
     -DGRPC_POSIX_FORK_ALLOW_PTHREAD_ATFORK=1 \
     -DGRPC_XDS_USER_AGENT_NAME_SUFFIX='"\"PHP\""' \
-    -DGRPC_XDS_USER_AGENT_VERSION_SUFFIX='"\"1.47.0dev\""')
+    -DGRPC_XDS_USER_AGENT_VERSION_SUFFIX='"\"1.48.0dev\""')
 
   PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/filters/census)
   PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/filters/channel_idle)
diff --git a/doc/g_stands_for.md b/doc/g_stands_for.md
index b0ee08e1065..70011c404fd 100644
--- a/doc/g_stands_for.md
+++ b/doc/g_stands_for.md
@@ -46,4 +46,5 @@
 - 1.44 'g' stands for ['great'](https://github.com/grpc/grpc/tree/v1.44.x)
 - 1.45 'g' stands for ['gravity'](https://github.com/grpc/grpc/tree/v1.45.x)
 - 1.46 'g' stands for ['golazo'](https://github.com/grpc/grpc/tree/v1.46.x)
-- 1.47 'g' stands for ['gridman'](https://github.com/grpc/grpc/tree/master)
+- 1.47 'g' stands for ['gridman'](https://github.com/grpc/grpc/tree/v1.47.x)
+- 1.48 'g' stands for ['garum'](https://github.com/grpc/grpc/tree/master)
diff --git a/gRPC-C++.podspec b/gRPC-C++.podspec
index de889b5da37..dac9ff4e1c4 100644
--- a/gRPC-C++.podspec
+++ b/gRPC-C++.podspec
@@ -22,7 +22,7 @@
 Pod::Spec.new do |s|
   s.name     = 'gRPC-C++'
   # TODO (mxyan): use version that match gRPC version when pod is stabilized
-  version = '1.47.0-dev'
+  version = '1.48.0-dev'
   s.version  = version
   s.summary  = 'gRPC C++ library'
   s.homepage = 'https://grpc.io'
diff --git a/gRPC-Core.podspec b/gRPC-Core.podspec
index 88052395952..9f99667e07b 100644
--- a/gRPC-Core.podspec
+++ b/gRPC-Core.podspec
@@ -21,7 +21,7 @@
 
 Pod::Spec.new do |s|
   s.name     = 'gRPC-Core'
-  version = '1.47.0-dev'
+  version = '1.48.0-dev'
   s.version  = version
   s.summary  = 'Core cross-platform gRPC library, written in C'
   s.homepage = 'https://grpc.io'
diff --git a/gRPC-ProtoRPC.podspec b/gRPC-ProtoRPC.podspec
index fc913995966..1912b41aab0 100644
--- a/gRPC-ProtoRPC.podspec
+++ b/gRPC-ProtoRPC.podspec
@@ -21,7 +21,7 @@
 
 Pod::Spec.new do |s|
   s.name     = 'gRPC-ProtoRPC'
-  version = '1.47.0-dev'
+  version = '1.48.0-dev'
   s.version  = version
   s.summary  = 'RPC library for Protocol Buffers, based on gRPC'
   s.homepage = 'https://grpc.io'
diff --git a/gRPC-RxLibrary.podspec b/gRPC-RxLibrary.podspec
index 8f5f4e0c39b..a3471e9da17 100644
--- a/gRPC-RxLibrary.podspec
+++ b/gRPC-RxLibrary.podspec
@@ -21,7 +21,7 @@
 
 Pod::Spec.new do |s|
   s.name     = 'gRPC-RxLibrary'
-  version = '1.47.0-dev'
+  version = '1.48.0-dev'
   s.version  = version
   s.summary  = 'Reactive Extensions library for iOS/OSX.'
   s.homepage = 'https://grpc.io'
diff --git a/gRPC.podspec b/gRPC.podspec
index 0bfffd19687..c7f39fe47c8 100644
--- a/gRPC.podspec
+++ b/gRPC.podspec
@@ -20,7 +20,7 @@
 
 Pod::Spec.new do |s|
   s.name     = 'gRPC'
-  version = '1.47.0-dev'
+  version = '1.48.0-dev'
   s.version  = version
   s.summary  = 'gRPC client library for iOS/OSX'
   s.homepage = 'https://grpc.io'
diff --git a/package.xml b/package.xml
index 98bf3e60b90..13a7318908f 100644
--- a/package.xml
+++ b/package.xml
@@ -13,8 +13,8 @@
  <date>2019-09-24</date>
  <time>16:06:07</time>
  <version>
-  <release>1.47.0dev</release>
-  <api>1.47.0dev</api>
+  <release>1.48.0dev</release>
+  <api>1.48.0dev</api>
  </version>
  <stability>
   <release>beta</release>
@@ -22,7 +22,7 @@
  </stability>
  <license>Apache 2.0</license>
  <notes>
-- gRPC Core 1.47.0 update
+- gRPC Core 1.48.0 update
  </notes>
  <contents>
   <dir baseinstalldir="/" name="/">
diff --git a/src/core/lib/surface/version.cc b/src/core/lib/surface/version.cc
index a1457677eb7..4d2b8f52c3f 100644
--- a/src/core/lib/surface/version.cc
+++ b/src/core/lib/surface/version.cc
@@ -25,4 +25,4 @@
 
 const char* grpc_version_string(void) { return "25.0.0"; }
 
-const char* grpc_g_stands_for(void) { return "gridman"; }
+const char* grpc_g_stands_for(void) { return "garum"; }
diff --git a/src/cpp/common/version_cc.cc b/src/cpp/common/version_cc.cc
index e2acc38ae79..adb96f9fe3c 100644
--- a/src/cpp/common/version_cc.cc
+++ b/src/cpp/common/version_cc.cc
@@ -25,5 +25,5 @@
 #include <grpcpp/support/config.h>
 
 namespace grpc {
-std::string Version() { return "1.47.0-dev"; }
+std::string Version() { return "1.48.0-dev"; }
 }  // namespace grpc
diff --git a/src/csharp/build/dependencies.props b/src/csharp/build/dependencies.props
index 730073b47f4..7b8020567d2 100644
--- a/src/csharp/build/dependencies.props
+++ b/src/csharp/build/dependencies.props
@@ -1,7 +1,7 @@
 <!-- This file is generated -->
 <Project>
   <PropertyGroup>
-    <GrpcCsharpVersion>2.47.0-dev</GrpcCsharpVersion>
+    <GrpcCsharpVersion>2.48.0-dev</GrpcCsharpVersion>
     <GoogleProtobufVersion>3.19.4</GoogleProtobufVersion>
   </PropertyGroup>
 </Project>
diff --git a/src/objective-c/!ProtoCompiler-gRPCCppPlugin.podspec b/src/objective-c/!ProtoCompiler-gRPCCppPlugin.podspec
index 13a2c121d63..2c5d91640cd 100644
--- a/src/objective-c/!ProtoCompiler-gRPCCppPlugin.podspec
+++ b/src/objective-c/!ProtoCompiler-gRPCCppPlugin.podspec
@@ -42,7 +42,7 @@ Pod::Spec.new do |s|
   # exclamation mark ensures that other "regular" pods will be able to find it as it'll be installed
   # before them.
   s.name     = '!ProtoCompiler-gRPCCppPlugin'
-  v = '1.47.0-dev'
+  v = '1.48.0-dev'
   s.version  = v
   s.summary  = 'The gRPC ProtoC plugin generates C++ files from .proto services.'
   s.description = <<-DESC
diff --git a/src/objective-c/!ProtoCompiler-gRPCPlugin.podspec b/src/objective-c/!ProtoCompiler-gRPCPlugin.podspec
index a2f1973fe82..d201840dcf0 100644
--- a/src/objective-c/!ProtoCompiler-gRPCPlugin.podspec
+++ b/src/objective-c/!ProtoCompiler-gRPCPlugin.podspec
@@ -42,7 +42,7 @@ Pod::Spec.new do |s|
   # exclamation mark ensures that other "regular" pods will be able to find it as it'll be installed
   # before them.
   s.name     = '!ProtoCompiler-gRPCPlugin'
-  v = '1.47.0-dev'
+  v = '1.48.0-dev'
   s.version  = v
   s.summary  = 'The gRPC ProtoC plugin generates Objective-C files from .proto services.'
   s.description = <<-DESC
diff --git a/src/objective-c/GRPCClient/version.h b/src/objective-c/GRPCClient/version.h
index bc92e066e22..e930d1596ae 100644
--- a/src/objective-c/GRPCClient/version.h
+++ b/src/objective-c/GRPCClient/version.h
@@ -22,4 +22,4 @@
 // instead. This file can be regenerated from the template by running
 // `tools/buildgen/generate_projects.sh`.
 
-#define GRPC_OBJC_VERSION_STRING @"1.47.0-dev"
+#define GRPC_OBJC_VERSION_STRING @"1.48.0-dev"
diff --git a/src/objective-c/tests/version.h b/src/objective-c/tests/version.h
index 46a2d6cc274..42ebe8836f0 100644
--- a/src/objective-c/tests/version.h
+++ b/src/objective-c/tests/version.h
@@ -22,5 +22,5 @@
 // instead. This file can be regenerated from the template by running
 // `tools/buildgen/generate_projects.sh`.
 
-#define GRPC_OBJC_VERSION_STRING @"1.47.0-dev"
+#define GRPC_OBJC_VERSION_STRING @"1.48.0-dev"
 #define GRPC_C_VERSION_STRING @"25.0.0"
diff --git a/src/php/composer.json b/src/php/composer.json
index 537639ad9ea..cdb480f862a 100644
--- a/src/php/composer.json
+++ b/src/php/composer.json
@@ -2,7 +2,7 @@
   "name": "grpc/grpc-dev",
   "description": "gRPC library for PHP - for Development use only",
   "license": "Apache-2.0",
-  "version": "1.47.0",
+  "version": "1.48.0",
   "require": {
     "php": ">=7.0.0",
     "google/protobuf": "^v3.3.0"
diff --git a/src/php/ext/grpc/version.h b/src/php/ext/grpc/version.h
index bc0845dc9d6..e505c4c1a35 100644
--- a/src/php/ext/grpc/version.h
+++ b/src/php/ext/grpc/version.h
@@ -20,6 +20,6 @@
 #ifndef VERSION_H
 #define VERSION_H
 
-#define PHP_GRPC_VERSION "1.47.0dev"
+#define PHP_GRPC_VERSION "1.48.0dev"
 
 #endif /* VERSION_H */
diff --git a/src/python/grpcio/grpc/_grpcio_metadata.py b/src/python/grpcio/grpc/_grpcio_metadata.py
index aefbc3fa8be..4ed47ae8e33 100644
--- a/src/python/grpcio/grpc/_grpcio_metadata.py
+++ b/src/python/grpcio/grpc/_grpcio_metadata.py
@@ -14,4 +14,4 @@
 
 # AUTO-GENERATED FROM `$REPO_ROOT/templates/src/python/grpcio/grpc/_grpcio_metadata.py.template`!!!
 
-__version__ = """1.47.0.dev0"""
+__version__ = """1.48.0.dev0"""
diff --git a/src/python/grpcio/grpc_version.py b/src/python/grpcio/grpc_version.py
index 808a3547fd9..cb3dbe9e022 100644
--- a/src/python/grpcio/grpc_version.py
+++ b/src/python/grpcio/grpc_version.py
@@ -14,4 +14,4 @@
 
 # AUTO-GENERATED FROM `$REPO_ROOT/templates/src/python/grpcio/grpc_version.py.template`!!!
 
-VERSION = '1.47.0.dev0'
+VERSION = '1.48.0.dev0'
diff --git a/src/python/grpcio_admin/grpc_version.py b/src/python/grpcio_admin/grpc_version.py
index 1a02eeb05d6..90e4eb0173e 100644
--- a/src/python/grpcio_admin/grpc_version.py
+++ b/src/python/grpcio_admin/grpc_version.py
@@ -14,4 +14,4 @@
 
 # AUTO-GENERATED FROM `$REPO_ROOT/templates/src/python/grpcio_admin/grpc_version.py.template`!!!
 
-VERSION = '1.47.0.dev0'
+VERSION = '1.48.0.dev0'
diff --git a/src/python/grpcio_channelz/grpc_version.py b/src/python/grpcio_channelz/grpc_version.py
index 937cc8bea9a..1bcfdf93062 100644
--- a/src/python/grpcio_channelz/grpc_version.py
+++ b/src/python/grpcio_channelz/grpc_version.py
@@ -14,4 +14,4 @@
 
 # AUTO-GENERATED FROM `$REPO_ROOT/templates/src/python/grpcio_channelz/grpc_version.py.template`!!!
 
-VERSION = '1.47.0.dev0'
+VERSION = '1.48.0.dev0'
diff --git a/src/python/grpcio_csds/grpc_version.py b/src/python/grpcio_csds/grpc_version.py
index 910fdee9781..fe43b4cdae2 100644
--- a/src/python/grpcio_csds/grpc_version.py
+++ b/src/python/grpcio_csds/grpc_version.py
@@ -14,4 +14,4 @@
 
 # AUTO-GENERATED FROM `$REPO_ROOT/templates/src/python/grpcio_csds/grpc_version.py.template`!!!
 
-VERSION = '1.47.0.dev0'
+VERSION = '1.48.0.dev0'
diff --git a/src/python/grpcio_health_checking/grpc_version.py b/src/python/grpcio_health_checking/grpc_version.py
index 340047bb5fd..f83057edd09 100644
--- a/src/python/grpcio_health_checking/grpc_version.py
+++ b/src/python/grpcio_health_checking/grpc_version.py
@@ -14,4 +14,4 @@
 
 # AUTO-GENERATED FROM `$REPO_ROOT/templates/src/python/grpcio_health_checking/grpc_version.py.template`!!!
 
-VERSION = '1.47.0.dev0'
+VERSION = '1.48.0.dev0'
diff --git a/src/python/grpcio_reflection/grpc_version.py b/src/python/grpcio_reflection/grpc_version.py
index 161e41aa180..888ff235adc 100644
--- a/src/python/grpcio_reflection/grpc_version.py
+++ b/src/python/grpcio_reflection/grpc_version.py
@@ -14,4 +14,4 @@
 
 # AUTO-GENERATED FROM `$REPO_ROOT/templates/src/python/grpcio_reflection/grpc_version.py.template`!!!
 
-VERSION = '1.47.0.dev0'
+VERSION = '1.48.0.dev0'
diff --git a/src/python/grpcio_status/grpc_version.py b/src/python/grpcio_status/grpc_version.py
index acfd55ebeb4..0506fe573c0 100644
--- a/src/python/grpcio_status/grpc_version.py
+++ b/src/python/grpcio_status/grpc_version.py
@@ -14,4 +14,4 @@
 
 # AUTO-GENERATED FROM `$REPO_ROOT/templates/src/python/grpcio_status/grpc_version.py.template`!!!
 
-VERSION = '1.47.0.dev0'
+VERSION = '1.48.0.dev0'
diff --git a/src/python/grpcio_testing/grpc_version.py b/src/python/grpcio_testing/grpc_version.py
index 0c020e6377c..dfa90514bb8 100644
--- a/src/python/grpcio_testing/grpc_version.py
+++ b/src/python/grpcio_testing/grpc_version.py
@@ -14,4 +14,4 @@
 
 # AUTO-GENERATED FROM `$REPO_ROOT/templates/src/python/grpcio_testing/grpc_version.py.template`!!!
 
-VERSION = '1.47.0.dev0'
+VERSION = '1.48.0.dev0'
diff --git a/src/python/grpcio_tests/grpc_version.py b/src/python/grpcio_tests/grpc_version.py
index 804e5b78872..86ac6b7eb64 100644
--- a/src/python/grpcio_tests/grpc_version.py
+++ b/src/python/grpcio_tests/grpc_version.py
@@ -14,4 +14,4 @@
 
 # AUTO-GENERATED FROM `$REPO_ROOT/templates/src/python/grpcio_tests/grpc_version.py.template`!!!
 
-VERSION = '1.47.0.dev0'
+VERSION = '1.48.0.dev0'
diff --git a/src/ruby/ext/grpc/extconf.rb b/src/ruby/ext/grpc/extconf.rb
index e5f01ff6269..d4e5b0b08c0 100644
--- a/src/ruby/ext/grpc/extconf.rb
+++ b/src/ruby/ext/grpc/extconf.rb
@@ -60,7 +60,7 @@ end
 
 ENV['CPPFLAGS'] = '-DGPR_BACKWARDS_COMPATIBILITY_MODE'
 ENV['CPPFLAGS'] += ' -DGRPC_XDS_USER_AGENT_NAME_SUFFIX="\"RUBY\"" '
-ENV['CPPFLAGS'] += ' -DGRPC_XDS_USER_AGENT_VERSION_SUFFIX="\"1.47.0.dev\"" '
+ENV['CPPFLAGS'] += ' -DGRPC_XDS_USER_AGENT_VERSION_SUFFIX="\"1.48.0.dev\"" '
 
 output_dir = File.expand_path(RbConfig::CONFIG['topdir'])
 grpc_lib_dir = File.join(output_dir, 'libs', grpc_config)
diff --git a/src/ruby/lib/grpc/version.rb b/src/ruby/lib/grpc/version.rb
index 458e32671c4..c2972cca878 100644
--- a/src/ruby/lib/grpc/version.rb
+++ b/src/ruby/lib/grpc/version.rb
@@ -14,5 +14,5 @@
 
 # GRPC contains the General RPC module.
 module GRPC
-  VERSION = '1.47.0.dev'
+  VERSION = '1.48.0.dev'
 end
diff --git a/src/ruby/tools/version.rb b/src/ruby/tools/version.rb
index a529b179f03..ce112ef1edf 100644
--- a/src/ruby/tools/version.rb
+++ b/src/ruby/tools/version.rb
@@ -14,6 +14,6 @@
 
 module GRPC
   module Tools
-    VERSION = '1.47.0.dev'
+    VERSION = '1.48.0.dev'
   end
 end
diff --git a/tools/distrib/python/grpc_version.py b/tools/distrib/python/grpc_version.py
index 45ec8d5fbec..63b05007aa5 100644
--- a/tools/distrib/python/grpc_version.py
+++ b/tools/distrib/python/grpc_version.py
@@ -14,5 +14,5 @@
 
 # AUTO-GENERATED FROM `$REPO_ROOT/templates/tools/distrib/python/grpcio_tools/grpc_version.py.template`!!!
 
-VERSION = '1.47.0.dev0'
+VERSION = '1.48.0.dev0'
 PROTOBUF_VERSION = '3.19.4'
diff --git a/tools/distrib/python/grpcio_tools/grpc_version.py b/tools/distrib/python/grpcio_tools/grpc_version.py
index 92047edd0ec..43bf57f6983 100644
--- a/tools/distrib/python/grpcio_tools/grpc_version.py
+++ b/tools/distrib/python/grpcio_tools/grpc_version.py
@@ -14,5 +14,5 @@
 
 # AUTO-GENERATED FROM `$REPO_ROOT/templates/tools/distrib/python/grpcio_tools/grpc_version.py.template`!!!
 
-VERSION = '1.47.0.dev0'
+VERSION = '1.48.0.dev0'
 PROTOBUF_VERSION = '3.19.4'
diff --git a/tools/doxygen/Doxyfile.c++ b/tools/doxygen/Doxyfile.c++
index bf3aff40492..51b75abb301 100644
--- a/tools/doxygen/Doxyfile.c++
+++ b/tools/doxygen/Doxyfile.c++
@@ -40,7 +40,7 @@ PROJECT_NAME           = "GRPC C++"
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 1.47.0-dev
+PROJECT_NUMBER         = 1.48.0-dev
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a
diff --git a/tools/doxygen/Doxyfile.c++.internal b/tools/doxygen/Doxyfile.c++.internal
index de39f0fe7d1..68941a86298 100644
--- a/tools/doxygen/Doxyfile.c++.internal
+++ b/tools/doxygen/Doxyfile.c++.internal
@@ -40,7 +40,7 @@ PROJECT_NAME           = "GRPC C++"
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 1.47.0-dev
+PROJECT_NUMBER         = 1.48.0-dev
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a
diff --git a/tools/doxygen/Doxyfile.objc b/tools/doxygen/Doxyfile.objc
index 72998ffa560..470b7d0e396 100644
--- a/tools/doxygen/Doxyfile.objc
+++ b/tools/doxygen/Doxyfile.objc
@@ -40,7 +40,7 @@ PROJECT_NAME           = "GRPC Objective-C"
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 1.47.0-dev
+PROJECT_NUMBER         = 1.48.0-dev
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a
diff --git a/tools/doxygen/Doxyfile.objc.internal b/tools/doxygen/Doxyfile.objc.internal
index e0974a6bb14..9a51fde0ebd 100644
--- a/tools/doxygen/Doxyfile.objc.internal
+++ b/tools/doxygen/Doxyfile.objc.internal
@@ -40,7 +40,7 @@ PROJECT_NAME           = "GRPC Objective-C"
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 1.47.0-dev
+PROJECT_NUMBER         = 1.48.0-dev
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a
diff --git a/tools/doxygen/Doxyfile.php b/tools/doxygen/Doxyfile.php
index dbc7f9669f5..de29124f3f4 100644
--- a/tools/doxygen/Doxyfile.php
+++ b/tools/doxygen/Doxyfile.php
@@ -40,7 +40,7 @@ PROJECT_NAME           = "GRPC PHP"
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 1.47.0-dev
+PROJECT_NUMBER         = 1.48.0-dev
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a