diff --git a/core/build.sbt b/core/build.sbt
index de8206bc..b0fb705d 100644
--- a/core/build.sbt
+++ b/core/build.sbt
@@ -4,7 +4,7 @@ description :=
   "Core Dispatch module wrapping sonatype/async-http-client"
 
 libraryDependencies +=
-  "com.ning" % "async-http-client" % "1.9.11"
+  "com.ning" % "async-http-client" % "1.9.40"
 
 Seq(lsSettings :_*)