diff --git a/pkgs/development/ocaml-modules/github/default.nix b/pkgs/development/ocaml-modules/github/default.nix
index 7c91f5a9dbcf..28a5de55978c 100644
--- a/pkgs/development/ocaml-modules/github/default.nix
+++ b/pkgs/development/ocaml-modules/github/default.nix
@@ -13,13 +13,13 @@
 
 buildDunePackage rec {
   pname = "github";
-  version = "4.5.0";
+  version = "4.5.1";
 
   src = fetchFromGitHub {
     owner = "mirage";
     repo = "ocaml-github";
     rev = version;
-    sha256 = "sha256-/IRoaGh4nYcdv4ir3LOS1d9UHLfWJ6DdPyFoFVCS+p4=";
+    sha256 = "sha256-nxHXOdZAvFe5/lKNw7tTJmY86xzfdFT+fW+lnKioyPM=";
   };
 
   duneVersion = "3";
diff --git a/pkgs/development/ocaml-modules/github/unix.nix b/pkgs/development/ocaml-modules/github/unix.nix
index 54e5dc5daa98..ae6bdb7967a8 100644
--- a/pkgs/development/ocaml-modules/github/unix.nix
+++ b/pkgs/development/ocaml-modules/github/unix.nix
@@ -13,16 +13,8 @@ buildDunePackage {
   pname = "github-unix";
   inherit (github) version src;
 
-  patches = [
-    # Compatibility with yojson 3.0
-    (fetchpatch {
-      url = "https://github.com/mirage/ocaml-github/commit/487d7d413363921a8ffbb941610c2f71c811add8.patch";
-      hash = "sha256-ThCsWRQKmlRg7rk8tlorsO87v8RWnBvocHDvgg/WWMA=";
-    })
-  ];
-
   postPatch = ''
-    substituteInPlace unix/dune --replace 'github bytes' 'github'
+    substituteInPlace unix/dune --replace-fail 'github bytes' 'github'
   '';
 
   propagatedBuildInputs = [