diff --git a/gradle.properties b/gradle.properties
index 98cb10ec30..dd2259f713 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -158,7 +158,7 @@ googleAutoValueAnnotationsVersion=1.10.4
 googleErrorProneAnnotationsVersion=2.36.0
 googleHttpClientVersion=1.45.3
 googleOauthClientVersion=1.37.0
-googleProtocolBufVersion=3.25.5
+googleProtocolBufVersion=3.25.6
 
 # Cloud and SequenceAnalysis bring gson in as a transitive dependency.
 # We resolve to the later version here to keep things consistent