diff --git a/pom.xml b/pom.xml
index c835759..86af127 100644
--- a/pom.xml
+++ b/pom.xml
@@ -71,7 +71,7 @@
         <google-java-format.version>1.10.0</google-java-format.version>
 
         <junit.version>5.7.1</junit.version>
-        <immutables.version>2.8.9-ea-1</immutables.version>
+        <immutables.version>2.9.1</immutables.version>
         <api.guardian.version>1.1.1</api.guardian.version>
         <assertj.version>3.19.0</assertj.version>
         <yasson.version>2.0.2</yasson.version>