diff --git a/pkgs/development/python-modules/diff-match-patch/default.nix b/pkgs/development/python-modules/diff-match-patch/default.nix
index 062fb00e48b..cf1bebad144 100644
--- a/pkgs/development/python-modules/diff-match-patch/default.nix
+++ b/pkgs/development/python-modules/diff-match-patch/default.nix
@@ -2,7 +2,7 @@
 
 buildPythonPackage rec {
   pname = "diff-match-patch";
-  version = "20121119";
+  version = "20181111";
 
   meta = {
     homepage = https://code.google.com/p/google-diff-match-patch/;
@@ -12,6 +12,6 @@ buildPythonPackage rec {
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "0k1f3v8nbidcmmrk65m7h8v41jqi37653za9fcs96y7jzc8mdflx";
+    sha256 = "a809a996d0f09b9bbd59e9bbd0b71eed8c807922512910e05cbd3f9480712ddb";
   };
 }