diff --git a/gradle.properties b/gradle.properties
index 507a11fc..e6e931dd 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -7,7 +7,7 @@ findbugsVersion=3.0.2
 #micrometerVersion=1.9.0-SNAPSHOT
 multithreadedtcVersion=1.01
 pivotalCloudCacheVersion=1.14.9
-pivotalGemFireVersion=9.15.5
+pivotalGemFireVersion=9.15.9
 springVersion=6.0.9
 springBootVersion=3.0.7-SNAPSHOT
 springCloudBindingsVersion=1.10.0