diff --git a/pom.xml b/pom.xml
index 8bb67c6..155c6e5 100644
--- a/pom.xml
+++ b/pom.xml
@@ -63,7 +63,7 @@
   </developers>
 
   <properties>
-    <stack.version>3.9.1</stack.version>
+    <stack.version>3.9.4</stack.version>
     <junit.version>4.13.1</junit.version>
     <embedded.consul.version>2.1.2</embedded.consul.version>
   </properties>