diff --git a/java/coherence-client/pom.xml b/java/coherence-client/pom.xml
index be32ebde..0969775c 100644
--- a/java/coherence-client/pom.xml
+++ b/java/coherence-client/pom.xml
@@ -155,7 +155,7 @@
     <dependency>
       <groupId>com.google.protobuf</groupId>
       <artifactId>protobuf-java</artifactId>
-      <version>4.31.1</version>
+      <version>4.33.0</version>
     </dependency>
 
     <!-- test dependencies -->
diff --git a/java/coherence-server/pom.xml b/java/coherence-server/pom.xml
index c5f77e33..463c0139 100644
--- a/java/coherence-server/pom.xml
+++ b/java/coherence-server/pom.xml
@@ -131,7 +131,7 @@
     <dependency>
       <groupId>com.google.protobuf</groupId>
       <artifactId>protobuf-java</artifactId>
-      <version>4.31.1</version>
+      <version>4.33.0</version>
     </dependency>
 
     <!-- test dependencies -->
diff --git a/java/helidon-client/pom.xml b/java/helidon-client/pom.xml
index a349efaf..42c5bb14 100644
--- a/java/helidon-client/pom.xml
+++ b/java/helidon-client/pom.xml
@@ -131,7 +131,7 @@
     <dependency>
       <groupId>com.google.protobuf</groupId>
       <artifactId>protobuf-java</artifactId>
-      <version>4.31.1</version>
+      <version>4.33.0</version>
     </dependency>
 
     <!-- JavaFX dependencies -->
diff --git a/java/helidon-server/pom.xml b/java/helidon-server/pom.xml
index 5cb54a0f..9044bb8c 100644
--- a/java/helidon-server/pom.xml
+++ b/java/helidon-server/pom.xml
@@ -175,7 +175,7 @@
     <dependency>
       <groupId>com.google.protobuf</groupId>
       <artifactId>protobuf-java</artifactId>
-      <version>4.31.1</version>
+      <version>4.33.0</version>
     </dependency>
 
     <!-- jandex -->
diff --git a/java/micronaut-server/pom.xml b/java/micronaut-server/pom.xml
index 12148e71..5dc0ce06 100644
--- a/java/micronaut-server/pom.xml
+++ b/java/micronaut-server/pom.xml
@@ -176,7 +176,7 @@
     <dependency>
       <groupId>com.google.protobuf</groupId>
       <artifactId>protobuf-java</artifactId>
-      <version>4.31.1</version>
+      <version>4.33.0</version>
     </dependency>
     <dependency>
       <groupId>${coherence.groupId}</groupId>
diff --git a/java/spring-server/pom.xml b/java/spring-server/pom.xml
index c0b68d92..c3019d37 100644
--- a/java/spring-server/pom.xml
+++ b/java/spring-server/pom.xml
@@ -114,7 +114,7 @@
     <dependency>
       <groupId>com.google.protobuf</groupId>
       <artifactId>protobuf-java</artifactId>
-      <version>4.31.1</version>
+      <version>4.33.0</version>
     </dependency>
     <dependency>
       <groupId>org.springframework.boot</groupId>