diff --git a/test/core/end2end/fuzzers/BUILD b/test/core/end2end/fuzzers/BUILD
index d33e2b0ff4c..91915b27553 100644
--- a/test/core/end2end/fuzzers/BUILD
+++ b/test/core/end2end/fuzzers/BUILD
@@ -25,6 +25,7 @@ grpc_fuzzer(
     srcs = ["api_fuzzer.cc"],
     language = "C++",
     corpus = "api_fuzzer_corpus",
+    size = "enormous",
     deps = [
         "//:gpr",
         "//:grpc",
diff --git a/test/core/util/grpc_fuzzer.bzl b/test/core/util/grpc_fuzzer.bzl
index 9847456067d..cff7dc03206 100644
--- a/test/core/util/grpc_fuzzer.bzl
+++ b/test/core/util/grpc_fuzzer.bzl
@@ -23,7 +23,7 @@ def grpc_fuzzer(name, corpus, srcs = [], deps = [], **kwargs):
     external_deps = [
       'gtest',
     ],
-    size = "enormous",
+    size = "large",
     args = ["--directory=" + native.package_name() + "/" + corpus,],
     **kwargs
   )