diff --git a/pom.xml b/pom.xml
index f2141f735..c1a82376a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -78,7 +78,7 @@
     <properties>
         <reactive-streams.version>1.0.4</reactive-streams.version>
         <rxjava3.version>3.1.5</rxjava3.version>
-        <reactor-core.version>3.4.19</reactor-core.version>
+        <reactor-core.version>3.4.21</reactor-core.version>
 
         <microprofile-reactive-streams.version>2.0</microprofile-reactive-streams.version>
         <microprofile-context-propagation.version>1.3</microprofile-context-propagation.version>