diff --git a/pkgs/development/compilers/reason/default.nix b/pkgs/development/compilers/reason/default.nix
index cc99aa078f9a..1de8de40c89d 100644
--- a/pkgs/development/compilers/reason/default.nix
+++ b/pkgs/development/compilers/reason/default.nix
@@ -4,11 +4,11 @@
 
 stdenv.mkDerivation rec {
   pname = "ocaml${ocaml.version}-reason";
-  version = "3.8.0";
+  version = "3.8.1";
 
   src = fetchurl {
     url = "https://github.com/reasonml/reason/releases/download/${version}/reason-${version}.tbz";
-    sha256 = "sha256:0yc94m3ddk599crg33yxvkphxpy54kmdsl599c320wvn055p4y4l";
+    sha256 = "sha256-v827CfYrTBCPJubcOAQxYT5N5LBl348UNk7+Ss6o5BQ=";
   };
 
   nativeBuildInputs = [