diff --git a/pkgs/development/libraries/haskell/HsOpenSSL/default.nix b/pkgs/development/libraries/haskell/HsOpenSSL/default.nix
index 83bc8a227b74..0d11acb7ce87 100644
--- a/pkgs/development/libraries/haskell/HsOpenSSL/default.nix
+++ b/pkgs/development/libraries/haskell/HsOpenSSL/default.nix
@@ -2,8 +2,8 @@
 
 cabal.mkDerivation (self: {
   pname = "HsOpenSSL";
-  version = "0.10.2";
-  sha256 = "0bji31lb9n08ybzs23251q6afr32fjvzcjm7qs3fvy3r7bc3gqbf";
+  version = "0.10.3";
+  sha256 = "1f876xbx0a8xrs4ainmb79nisr6pflslzk26vk4psxgn9a159cvk";
   buildDepends = [ network time ];
   extraLibraries = [ openssl ];
   meta = {
diff --git a/pkgs/development/libraries/haskell/RSA/default.nix b/pkgs/development/libraries/haskell/RSA/default.nix
index 3f9b37535952..173ddc314952 100644
--- a/pkgs/development/libraries/haskell/RSA/default.nix
+++ b/pkgs/development/libraries/haskell/RSA/default.nix
@@ -1,12 +1,12 @@
-{ cabal, binary, cryptoApi, monadcryptorandom, pureMD5, SHA }:
+{ cabal, binary, pureMD5, random, SHA }:
 
 cabal.mkDerivation (self: {
   pname = "RSA";
-  version = "1.2.0.0";
-  sha256 = "0x4wa0yq4k43ccdakqcmy0mxvdlvrkfg6kc1j2hv7hh8b4vjisms";
+  version = "1.0.6.3";
+  sha256 = "0lk3nsh6nvacv1xzrg2pxxhd5gglmy40dkb8a47c9r9px0q6yjpj";
   isLibrary = true;
   isExecutable = true;
-  buildDepends = [ binary cryptoApi monadcryptorandom pureMD5 SHA ];
+  buildDepends = [ binary pureMD5 random SHA ];
   meta = {
     description = "Implementation of RSA, using the padding schemes of PKCS#1 v2.1.";
     license = self.stdenv.lib.licenses.bsd3;
diff --git a/pkgs/development/libraries/haskell/language-javascript/default.nix b/pkgs/development/libraries/haskell/language-javascript/default.nix
index 5d7f6d9edf5a..9a258f7e88de 100644
--- a/pkgs/development/libraries/haskell/language-javascript/default.nix
+++ b/pkgs/development/libraries/haskell/language-javascript/default.nix
@@ -2,10 +2,8 @@
 
 cabal.mkDerivation (self: {
   pname = "language-javascript";
-  version = "0.5.0";
-  sha256 = "0fx087z8sa360bsbd22g7jsnzz0dzvm6pfr59d4vamfwc0zg2yg9";
-  isLibrary = true;
-  isExecutable = true;
+  version = "0.5.1";
+  sha256 = "12nb951xcsg1qxrg347f4sxmdzi78vxwkjhx0fib6pkbcz9yqf5q";
   buildDepends = [ blazeBuilder mtl utf8Light utf8String ];
   buildTools = [ happy ];
   meta = {
diff --git a/pkgs/development/libraries/haskell/pem/default.nix b/pkgs/development/libraries/haskell/pem/default.nix
new file mode 100644
index 000000000000..35d8a49c2c83
--- /dev/null
+++ b/pkgs/development/libraries/haskell/pem/default.nix
@@ -0,0 +1,15 @@
+{ cabal, attoparsec, base64Bytestring, cereal, mtl }:
+
+cabal.mkDerivation (self: {
+  pname = "pem";
+  version = "0.1.0";
+  sha256 = "0qhkmxfhzpzg3ycdzr4b7zzf84vmhbqv2irh95ymmdbr0cc5hhn9";
+  buildDepends = [ attoparsec base64Bytestring cereal mtl ];
+  meta = {
+    homepage = "http://github.com/vincenthz/hs-pem";
+    description = "Privacy Enhanced Mail (PEM) format reader and writer";
+    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 c12a48733d90..f55a5f0714e4 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -968,7 +968,9 @@ let result = let callPackage = x : y : modifyPrio (newScope result.final x y);
 
   mathFunctions = callPackage ../development/libraries/haskell/math-functions {};
 
-  maude = callPackage ../development/libraries/haskell/maude {};
+  maude = callPackage ../development/libraries/haskell/maude {
+    parsec = self.parsec3;
+  };
 
   MaybeT = callPackage ../development/libraries/haskell/MaybeT {};
 
@@ -1102,6 +1104,8 @@ let result = let callPackage = x : y : modifyPrio (newScope result.final x y);
 
   pcreLight = callPackage ../development/libraries/haskell/pcre-light {};
 
+  pem = callPackage ../development/libraries/haskell/pem {};
+
   permutation = callPackage ../development/libraries/haskell/permutation {};
 
   persistent = callPackage ../development/libraries/haskell/persistent {};