diff --git a/pkgs/development/libraries/opengrm-ngram/default.nix b/pkgs/development/libraries/opengrm-ngram/default.nix
index 9b105808b8bb..3b00ae17e910 100644
--- a/pkgs/development/libraries/opengrm-ngram/default.nix
+++ b/pkgs/development/libraries/opengrm-ngram/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   pname = "opengrm-ngram";
-  version = "1.3.11";
+  version = "1.3.13";
 
   src = fetchurl {
     url = "http://www.openfst.org/twiki/pub/GRM/NGramDownload/ngram-${version}.tar.gz";
-    sha256 = "0wwpcj8qncdr9f2pmi0vhlw277dyxr85ygdi8g57xp2ifysigm05";
+    sha256 = "sha256-5CXf6OXs7owny3yZQrWYA6yhIyN0dgA2B8TSDEUTF1Q=";
   };
 
   nativeBuildInputs = [ autoreconfHook ];