diff --git a/pkgs/development/libraries/libyaml/default.nix b/pkgs/development/libraries/libyaml/default.nix
index 667298922ca..e441d1e6b61 100644
--- a/pkgs/development/libraries/libyaml/default.nix
+++ b/pkgs/development/libraries/libyaml/default.nix
@@ -1,21 +1,15 @@
 { stdenv, fetchurl, fetchpatch }:
 let
-  version = "0.1.6";
+  version = "0.1.7";
 in
 stdenv.mkDerivation {
   name = "libyaml-${version}";
 
   src = fetchurl {
     url = "http://pyyaml.org/download/libyaml/yaml-${version}.tar.gz";
-    sha256 = "0j9731s5zjb8mjx7wzf6vh7bsqi38ay564x6s9nri2nh9cdrg9kx";
+    sha256 = "0a87931cx5m14a1x8rbjix3nz7agrcgndf4h392vm62a4rby9240";
   };
 
-  patches = [(fetchpatch {
-    name = "CVE-2014-9130.diff";
-    url = "http://bitbucket.org/xi/libyaml/commits/2b915675/raw/";
-    sha256 = "1vrkga2wk060wccg61c2mj5prcyv181qikgdfi1z4hz8ygmpvl04";
-  })];
-
   meta = with stdenv.lib; {
     homepage = http://pyyaml.org/;
     description = "A YAML 1.1 parser and emitter written in C";
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index f654ca7f81f..1017218cd38 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -20504,11 +20504,11 @@ in modules // {
 
 
   pyyaml = buildPythonPackage (rec {
-    name = "PyYAML-3.11";
+    name = "PyYAML-3.12";
 
     src = pkgs.fetchurl {
       url = "http://pyyaml.org/download/pyyaml/${name}.zip";
-      sha256 = "19bb3ac350ef878dda84a62d37c7d5c17a137386dde9c2ce7249c7a21d7f6ac9";
+      sha256 = "19s1lxi0idq4a0bpvld866pv5b16lqxypyswmsdi5ys4210jxj2s";
     };
 
     buildInputs = with self; [ pkgs.pyrex ];