diff --git a/pkgs/development/libraries/haskell/monad-logger/default.nix b/pkgs/development/libraries/haskell/monad-logger/default.nix
index d8e724259a0f..4cb44acf652e 100644
--- a/pkgs/development/libraries/haskell/monad-logger/default.nix
+++ b/pkgs/development/libraries/haskell/monad-logger/default.nix
@@ -7,8 +7,8 @@
 
 cabal.mkDerivation (self: {
   pname = "monad-logger";
-  version = "0.3.7.2";
-  sha256 = "03q8l28rwrg00c2zcv0gr5fpis5xz8c5zspziay6p2grbwfxmwda";
+  version = "0.3.8";
+  sha256 = "08mvz78ak6rf22s2z0b50iky36cnd6f498262aj57l7j0l7zsy7r";
   buildDepends = [
     blazeBuilder conduit conduitExtra exceptions fastLogger liftedBase
     monadControl monadLoops mtl resourcet stm stmChans text