diff --git a/build.sbt b/build.sbt
index c601496..90e24cf 100644
--- a/build.sbt
+++ b/build.sbt
@@ -26,7 +26,7 @@ libraryDependencies ++=
   "com.lihaoyi"                           %% "upickle"               % "1.3.12"      ::
   "com.phylage"                           %% "refuel-json"           % "1.4.11"       ::
   "io.bullet"                             %% "borer-derivation"      % "1.7.2"       ::
-  "com.rallyhealth"                       %% "weepickle-v1"          % "1.4.1"       ::
+  "com.rallyhealth"                       %% "weepickle-v1"          % "1.4.2"       ::
   Nil
 
 libraryDependencies ++=