diff --git a/buildSrc/build.gradle b/buildSrc/build.gradle
index a2f8e69be..c74d51018 100644
--- a/buildSrc/build.gradle
+++ b/buildSrc/build.gradle
@@ -64,7 +64,7 @@ dependencies {
 
     implementation 'io.github.gradle-nexus:publish-plugin:1.1.0'
     implementation 'io.spring.gradle:dependency-management-plugin:1.0.15.RELEASE'
-    implementation 'io.projectreactor:reactor-core:3.4.38'
+    implementation 'io.projectreactor:reactor-core:3.4.39'
     implementation 'com.apollographql.apollo:apollo-runtime:2.4.5'
     implementation 'com.github.ben-manes:gradle-versions-plugin:0.41.0'
     implementation 'com.github.spullara.mustache.java:compiler:0.9.13'