diff --git a/pkgs/development/libraries/haskell/stm/2.4.nix b/pkgs/development/libraries/haskell/stm/2.4.nix
new file mode 100644
index 000000000000..a949474cef12
--- /dev/null
+++ b/pkgs/development/libraries/haskell/stm/2.4.nix
@@ -0,0 +1,13 @@
+{ cabal }:
+
+cabal.mkDerivation (self: {
+  pname = "stm";
+  version = "2.4";
+  sha256 = "13flyzh2vnqnap78qjawdh3150rmp9bxnlgynsf793lm1b3z15fl";
+  meta = {
+    description = "Software Transactional Memory";
+    license = self.stdenv.lib.licenses.bsd3;
+    platforms = self.ghc.meta.platforms;
+    maintainers = [ self.stdenv.lib.maintainers.andres ];
+  };
+})
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index c329fbc74784..08a365fb70be 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -137,7 +137,7 @@ let result = let callPackage = x : y : modifyPrio (newScope result.final x y);
     regexBase    = self.regexBase_0_93_2;       # 7.5 ok
     regexCompat  = self.regexCompat_0_95_1;     # 7.5 fail
     regexPosix   = self.regexPosix_0_95_1;      # 7.5 fail
-    stm          = self.stm_2_3;                # 7.5 ok
+    stm          = self.stm_2_4;                # 7.5 ok
     syb          = self.syb_0_3_6_2;            # 7.5 ok
     text         = self.text_0_11_2_2;          # 7.5 ok
     transformers = self.transformers_0_3_0_0;   # 7.5 ok
@@ -1336,7 +1336,8 @@ let result = let callPackage = x : y : modifyPrio (newScope result.final x y);
   stm_2_1_2_1 = callPackage ../development/libraries/haskell/stm/2.1.2.1.nix {};
   stm_2_2_0_1 = callPackage ../development/libraries/haskell/stm/2.2.0.1.nix {};
   stm_2_3 = callPackage ../development/libraries/haskell/stm/2.3.nix {};
-  stm = self.stm_2_3;
+  stm_2_4 = callPackage ../development/libraries/haskell/stm/2.4.nix {};
+  stm = self.stm_2_4;
 
   storableComplex = callPackage ../development/libraries/haskell/storable-complex {};