diff --git a/amazon-kinesis-client/pom.xml b/amazon-kinesis-client/pom.xml
index 512daef0..f6dee421 100644
--- a/amazon-kinesis-client/pom.xml
+++ b/amazon-kinesis-client/pom.xml
@@ -93,7 +93,7 @@
     <dependency>
       <groupId>com.google.protobuf</groupId>
       <artifactId>protobuf-java</artifactId>
-      <version>3.21.5</version>
+      <version>3.21.9</version>
     </dependency>
     <dependency>
       <groupId>org.apache.commons</groupId>