diff --git a/pom.xml b/pom.xml
index 7673d63172e..fb4009702e2 100644
--- a/pom.xml
+++ b/pom.xml
@@ -91,7 +91,7 @@
     <hk2.version>2.5.0</hk2.version>
     <jax-rs.version>2.1.1</jax-rs.version>
     <jsr353-ri.version>1.1.4</jsr353-ri.version>
-    <rxjava.version>2.2.2</rxjava.version>
+    <rxjava.version>2.2.21</rxjava.version>
     <awaitility.version>4.0.3</awaitility.version>
     <apacheds.version>2.0.0-M19</apacheds.version>
     <surefire.version>3.0.0</surefire.version>