diff --git a/pkgs/development/libraries/libyaml/default.nix b/pkgs/development/libraries/libyaml/default.nix
index 45e15c82966ef..734c9a0a901d7 100644
--- a/pkgs/development/libraries/libyaml/default.nix
+++ b/pkgs/development/libraries/libyaml/default.nix
@@ -1,16 +1,17 @@
 { stdenv, fetchurl }:
 let
-  # 0.2.1 broke the tests of pythonPackages.pyyaml 3.13
-  version = "0.1.7";
+  version = "0.2.1";
 in
 stdenv.mkDerivation {
   name = "libyaml-${version}";
 
   src = fetchurl {
     url = "https://pyyaml.org/download/libyaml/yaml-${version}.tar.gz";
-    sha256 = "0a87931cx5m14a1x8rbjix3nz7agrcgndf4h392vm62a4rby9240";
+    sha256 = "1karpcfgacgppa82wm2drcfn2kb6q2wqfykf5nrhy20sci2i2a3q";
   };
 
+  doCheck = true;
+
   meta = with stdenv.lib; {
     homepage = https://pyyaml.org/;
     description = "A YAML 1.1 parser and emitter written in C";