diff --git a/sdk/pom.xml b/sdk/pom.xml
index 09efa68bf8..f89b67da24 100644
--- a/sdk/pom.xml
+++ b/sdk/pom.xml
@@ -44,7 +44,7 @@
     <dependency>
       <groupId>io.projectreactor</groupId>
       <artifactId>reactor-core</artifactId>
-      <version>3.3.11.RELEASE</version>
+      <version>3.5.1</version>
     </dependency>
     <dependency>
       <groupId>com.squareup.okhttp3</groupId>