diff --git a/sdk/java/pulumi/build.gradle b/sdk/java/pulumi/build.gradle
index d6b32482b73..f99d72bb068 100644
--- a/sdk/java/pulumi/build.gradle
+++ b/sdk/java/pulumi/build.gradle
@@ -24,7 +24,7 @@ repositories {
 }
 
 def grpcVersion = "1.57.2"
-def protobufVersion = "3.25.5"
+def protobufVersion = "4.31.0"
 def protocVersion = protobufVersion
 def guavaVersion = "32.1.2-jre"
 def assertjCoreVersion = "3.27.1"