diff --git a/java-shared-dependencies/pom.xml b/java-shared-dependencies/pom.xml
index be5e780ffc..c6be95f8f6 100644
--- a/java-shared-dependencies/pom.xml
+++ b/java-shared-dependencies/pom.xml
@@ -58,7 +58,7 @@
     <grpc.version>1.36.0</grpc.version>
     <gax.version>1.62.0</gax.version>
     <guava.version>30.1-android</guava.version>
-    <protobuf.version>3.15.5</protobuf.version>
+    <protobuf.version>3.15.6</protobuf.version>
     <google.api-common.version>1.10.1</google.api-common.version>
     <google.common-protos.version>2.1.0</google.common-protos.version>
     <google.core.version>1.94.4</google.core.version>