diff --git a/pkgs/development/beam-modules/hex/default.nix b/pkgs/development/beam-modules/hex/default.nix
index 7e91153bed51..e8faa9c0a9ce 100644
--- a/pkgs/development/beam-modules/hex/default.nix
+++ b/pkgs/development/beam-modules/hex/default.nix
@@ -8,13 +8,13 @@ let
 
   pkg = self: stdenv.mkDerivation rec {
     pname = "hex";
-    version = "0.17.1";
+    version = "0.20.1";
 
     src = fetchFromGitHub {
         owner = "hexpm";
         repo = "hex";
         rev = "v${version}";
-        sha256 = "1s4asar1mcavzj3w37jcz243ka0z5jm0r42yws3h4aagawxxg02z";
+        sha256 = "0yxw7r31kk45b1nk48pajwwv9zl746kc9pwqfb73za8b1g8bgxd3";
     };
 
     setupHook = writeText "setupHook.sh" ''