diff --git a/templates/tools/dockerfile/ruby_deps.include b/templates/tools/dockerfile/ruby_deps.include
index 57fda4744dc..bcbd08c29ea 100644
--- a/templates/tools/dockerfile/ruby_deps.include
+++ b/templates/tools/dockerfile/ruby_deps.include
@@ -12,4 +12,4 @@ RUN /bin/bash -l -c "rvm use --default ruby-2.5"
 RUN /bin/bash -l -c "echo 'gem: --no-document' > ~/.gemrc"
 RUN /bin/bash -l -c "echo 'export PATH=/usr/local/rvm/bin:$PATH' >> ~/.bashrc"
 RUN /bin/bash -l -c "echo 'rvm --default use ruby-2.5' >> ~/.bashrc"
-RUN /bin/bash -l -c "gem install bundler --no-document"
+RUN /bin/bash -l -c "gem install bundler --no-document -v 1.9"
diff --git a/tools/dockerfile/interoptest/grpc_interop_ruby/Dockerfile b/tools/dockerfile/interoptest/grpc_interop_ruby/Dockerfile
index 39daac8435a..cce5e86cd37 100644
--- a/tools/dockerfile/interoptest/grpc_interop_ruby/Dockerfile
+++ b/tools/dockerfile/interoptest/grpc_interop_ruby/Dockerfile
@@ -80,7 +80,7 @@ RUN /bin/bash -l -c "rvm use --default ruby-2.5"
 RUN /bin/bash -l -c "echo 'gem: --no-document' > ~/.gemrc"
 RUN /bin/bash -l -c "echo 'export PATH=/usr/local/rvm/bin:$PATH' >> ~/.bashrc"
 RUN /bin/bash -l -c "echo 'rvm --default use ruby-2.5' >> ~/.bashrc"
-RUN /bin/bash -l -c "gem install bundler --no-document"
+RUN /bin/bash -l -c "gem install bundler --no-document -v 1.9"
 
 
 RUN mkdir /var/local/jenkins
diff --git a/tools/dockerfile/test/ruby_jessie_x64/Dockerfile b/tools/dockerfile/test/ruby_jessie_x64/Dockerfile
index ca38954c267..ae460756f88 100644
--- a/tools/dockerfile/test/ruby_jessie_x64/Dockerfile
+++ b/tools/dockerfile/test/ruby_jessie_x64/Dockerfile
@@ -84,7 +84,7 @@ RUN /bin/bash -l -c "rvm use --default ruby-2.5"
 RUN /bin/bash -l -c "echo 'gem: --no-document' > ~/.gemrc"
 RUN /bin/bash -l -c "echo 'export PATH=/usr/local/rvm/bin:$PATH' >> ~/.bashrc"
 RUN /bin/bash -l -c "echo 'rvm --default use ruby-2.5' >> ~/.bashrc"
-RUN /bin/bash -l -c "gem install bundler --no-document"
+RUN /bin/bash -l -c "gem install bundler --no-document -v 1.9"
 
 
 RUN mkdir /var/local/jenkins