diff --git a/OktaneCore/pom.xml b/OktaneCore/pom.xml
index f2db5c82..f1572750 100644
--- a/OktaneCore/pom.xml
+++ b/OktaneCore/pom.xml
@@ -17,7 +17,7 @@
         <sonar.organization>k-boyle</sonar.organization>
         <sonar.host.url>https://sonarcloud.io</sonar.host.url>
 
-        <reactor-core.version>3.4.9</reactor-core.version>
+        <reactor-core.version>3.5.9</reactor-core.version>
 
         <auto-service-annotations.version>1.0</auto-service-annotations.version>
     </properties>