diff --git a/build.sbt b/build.sbt
index 24d50417..df979cfd 100644
--- a/build.sbt
+++ b/build.sbt
@@ -12,7 +12,7 @@ val akkaStreamTestKit = "com.typesafe.akka" %% "akka-stream-testkit" % akkaVersi
 
 val snakeYaml =  "org.yaml" % "snakeyaml" % "2.0"
 val commonsIO = "commons-io" % "commons-io" % "2.11.0"
-val commonsCodec = "commons-codec" % "commons-codec" % "1.15"
+val commonsCodec = "commons-codec" % "commons-codec" % "1.18.0"
 
 // the client API request/response handing uses Akka Http
 val akkaHttp = "com.typesafe.akka" %% "akka-http" % "10.2.9"