diff --git a/pkgs/by-name/re/re2c/package.nix b/pkgs/by-name/re/re2c/package.nix
index f06a2b5424ef..22c1a9c3b286 100644
--- a/pkgs/by-name/re/re2c/package.nix
+++ b/pkgs/by-name/re/re2c/package.nix
@@ -13,13 +13,13 @@
 
 stdenv.mkDerivation rec {
   pname = "re2c";
-  version = "3.1";
+  version = "4.0.1";
 
   src = fetchFromGitHub {
     owner  = "skvadrik";
     repo   = "re2c";
     rev    = version;
-    sha256 = "sha256-7zZdLby7HdNoURgdkg+xnlp6VDCACcyGCTtjM43OLd4=";
+    sha256 = "sha256-fw+Dnq5ir5EAz3/GguIVUxe2K5fjQ9eLhpnlCIcw8js=";
   };
 
   nativeBuildInputs = [