diff --git a/dependencies.properties b/dependencies.properties
index 7544b917e..f95ad320c 100644
--- a/dependencies.properties
+++ b/dependencies.properties
@@ -23,7 +23,7 @@ version.gax_httpjson=0.103.7
 # Versions for dependencies which actual artifacts differ between Bazel and Gradle.
 # Gradle build depends on prebuilt maven artifacts, while Bazel build depends on Bazel workspaces
 # with the sources.
-version.com_google_protobuf=3.21.4
+version.com_google_protobuf=3.21.5
 version.google_java_format=1.15.0
 version.io_grpc=1.48.1