diff --git a/pkgs/development/python-modules/lark-parser/default.nix b/pkgs/development/python-modules/lark-parser/default.nix
index 79bf4636b500..abd3a491b20a 100644
--- a/pkgs/development/python-modules/lark-parser/default.nix
+++ b/pkgs/development/python-modules/lark-parser/default.nix
@@ -5,13 +5,13 @@
 
 buildPythonPackage rec {
   pname = "lark-parser";
-  version = "0.7.5";
+  version = "0.7.7";
 
   src = fetchFromGitHub {
     owner = "lark-parser";
     repo = "lark";
     rev = version;
-    sha256 = "1k9s62ddv6pghzp1yak2ld6sk92zm4sz1xqp8zkzyh3xqdsmfa0f";
+    sha256 = "1b0dvvqqasir8dfpqj4jch7wxxk43csbv0wa80fiqsdlymxxj2dj";
   };
 
   # tests of Nearley support require js2py