diff --git a/build.sbt b/build.sbt
index c7f5a39..9b033bd 100644
--- a/build.sbt
+++ b/build.sbt
@@ -41,7 +41,7 @@ lazy val server = project.in(file("server"))
     Compile/mainClass := Some("replpp.server.Main"),
     fork := true, // important: otherwise we run into classloader issues
     libraryDependencies ++= Seq(
-      "com.lihaoyi"   %% "cask"         % "0.9.5",
+      "com.lihaoyi"   %% "cask"         % "0.9.6",
       "org.slf4j"      % "slf4j-simple" % Slf4jVersion % Optional,
       "com.lihaoyi"   %% "requests"     % "0.8.2" % Test,
     )