diff --git a/pom.xml b/pom.xml
index 6f009c904..d96058c24 100644
--- a/pom.xml
+++ b/pom.xml
@@ -21,7 +21,7 @@
         <java.version>1.8</java.version>
         <spring.tuple.version>1.0.0.RELEASE</spring.tuple.version>
         <spring.integration.tuple.version>1.0.0.RELEASE</spring.integration.tuple.version>
-        <reactor.version>Bismuth-SR7</reactor.version>
+        <reactor.version>Californium-M1</reactor.version>
         <kryo-shaded.version>3.0.3</kryo-shaded.version>
         <objenesis.version>2.1</objenesis.version>
         <spring.cloud.function.version>2.0.0.BUILD-SNAPSHOT</spring.cloud.function.version>