diff --git a/gradle.properties b/gradle.properties
index 0df8ace..7994489 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -2,7 +2,7 @@ org.gradle.jvmargs=-Xmx2g -Dfile.encoding=UTF-8 --add-opens java.base/java.util.
 antlrVersion=2.7.7
 apacheGeodeVersion=1.15.1
 micrometerVersion=1.10.12
-pivotalGemFireVersion=9.15.5
+pivotalGemFireVersion=9.15.9
 springVersion=6.0.9
 springBootVersion=3.0.7
 springDataBomVersion=2022.0.6
diff --git a/pom.xml b/pom.xml
index 410250f..6fa046b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -90,7 +90,7 @@
 		<micrometer.version>1.10.12</micrometer.version>
 		<mockito.version>4.11.0</mockito.version>
 		<multithreadedtc.version>1.01</multithreadedtc.version>
-		<pivotal-gemfire.version>9.15.5</pivotal-gemfire.version>
+		<pivotal-gemfire.version>9.15.9</pivotal-gemfire.version>
 		<spring.version>6.0.9</spring.version>
 		<spring-boot.version>3.0.7</spring-boot.version>
 		<spring-data-bom.version>2022.0.6</spring-data-bom.version>