diff --git a/pkgs/development/libraries/haskell/resource-pool-catchio/default.nix b/pkgs/development/libraries/haskell/resource-pool-catchio/default.nix
new file mode 100644
index 00000000000..97b90714e1e
--- /dev/null
+++ b/pkgs/development/libraries/haskell/resource-pool-catchio/default.nix
@@ -0,0 +1,19 @@
+{ cabal, hashable, MonadCatchIOTransformers, stm, time
+, transformers, transformersBase, vector
+}:
+
+cabal.mkDerivation (self: {
+  pname = "resource-pool-catchio";
+  version = "0.2.1.0";
+  sha256 = "0g9r6hnn01n3p2ikcfkfc4afh83pzam29zal3k2ivajpl3kramsw";
+  buildDepends = [
+    hashable MonadCatchIOTransformers stm time transformers
+    transformersBase vector
+  ];
+  meta = {
+    homepage = "http://github.com/norm2782/pool";
+    description = "Fork of resource-pool, with a MonadCatchIO constraint";
+    license = self.stdenv.lib.licenses.bsd3;
+    platforms = self.ghc.meta.platforms;
+  };
+})
diff --git a/pkgs/development/libraries/haskell/snaplet-postgresql-simple/default.nix b/pkgs/development/libraries/haskell/snaplet-postgresql-simple/default.nix
new file mode 100644
index 00000000000..468d725479b
--- /dev/null
+++ b/pkgs/development/libraries/haskell/snaplet-postgresql-simple/default.nix
@@ -0,0 +1,22 @@
+{ cabal, clientsession, configurator, errors
+, MonadCatchIOTransformers, mtl, postgresqlSimple
+, resourcePoolCatchio, snap, text, transformers
+, unorderedContainers
+}:
+
+cabal.mkDerivation (self: {
+  pname = "snaplet-postgresql-simple";
+  version = "0.5";
+  sha256 = "0pzn0lg1slrllrrx1n9s1kp1pmq2ahrkjypcwnnld8zxzvz4g5jm";
+  buildDepends = [
+    clientsession configurator errors MonadCatchIOTransformers mtl
+    postgresqlSimple resourcePoolCatchio snap text transformers
+    unorderedContainers
+  ];
+  meta = {
+    homepage = "https://github.com/mightybyte/snaplet-postgresql-simple";
+    description = "postgresql-simple snaplet for the Snap Framework";
+    license = self.stdenv.lib.licenses.bsd3;
+    platforms = self.ghc.meta.platforms;
+  };
+})
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 942675c421d..70964d23bbb 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -1926,6 +1926,8 @@ self : let callPackage = x : y : modifyPrio (newScope self x y); in
 
   resourcePool = callPackage ../development/libraries/haskell/resource-pool {};
 
+  resourcePoolCatchio = callPackage ../development/libraries/haskell/resource-pool-catchio {};
+
   resourcet = callPackage ../development/libraries/haskell/resourcet {};
 
   retry = callPackage ../development/libraries/haskell/retry {};
@@ -2006,6 +2008,8 @@ self : let callPackage = x : y : modifyPrio (newScope self x y); in
 
   snapletAcidState = callPackage ../development/libraries/haskell/snaplet-acid-state {};
 
+  snapletPostgresqlSimple = callPackage ../development/libraries/haskell/snaplet-postgresql-simple {};
+
   snapletRedis = callPackage ../development/libraries/haskell/snaplet-redis {};
 
   snapletStripe = callPackage ../development/libraries/haskell/snaplet-stripe {};