diff --git a/pkgs/by-name/pr/protoc-gen-grpc-java/data.nix b/pkgs/by-name/pr/protoc-gen-grpc-java/data.nix
new file mode 100644
index 000000000000..d44566869cc9
--- /dev/null
+++ b/pkgs/by-name/pr/protoc-gen-grpc-java/data.nix
@@ -0,0 +1,14 @@
+{
+  version = "1.73.0";
+  hashes = {
+    linux-aarch_64 = "sha256-sgdZoaSM7LgK4DbbKPJO3FdBA37YAX86meaKDLQiOmg=";
+    linux-ppcle_64 = "sha256-k4nQGJNwtd8W4nJLyWPRhqjikczy7p7ffDIrWxkcUTA=";
+    linux-s390_64 = "sha256-fcuNlJeUmduFzqt5WaefYk3lFVmdHeSFIEkbwT2I1O0=";
+    linux-x86_32 = "sha256-KNvqGkeERd2UxzhjO/Fp6Uv7DGBt15rPGviRmH7pmno=";
+    linux-x86_64 = "sha256-7LI115E3BOz3jnHavkQBbN0hsjKuSbnXNAjXFw/D14I=";
+    osx-aarch_64 = "sha256-gAo2bcsivjDVFX5cUvzngoHgqTAPt+3Hiuynd17/KTo=";
+    osx-x86_64 = "sha256-gAo2bcsivjDVFX5cUvzngoHgqTAPt+3Hiuynd17/KTo=";
+    windows-x86_32 = "sha256-ERbksXFy4AFhZSFG9G4AMOi68EzEScBvDJFF9+rnPnU=";
+    windows-x86_64 = "sha256-wZU6on7A84fPm8xwD8pBgSk8+fkB14LdvWZXEniz8LU=";
+  };
+}
diff --git a/pkgs/by-name/pr/protoc-gen-grpc-java/hashes.nix b/pkgs/by-name/pr/protoc-gen-grpc-java/hashes.nix
deleted file mode 100644
index da9182e6d068..000000000000
--- a/pkgs/by-name/pr/protoc-gen-grpc-java/hashes.nix
+++ /dev/null
@@ -1,11 +0,0 @@
-{
-  linux-aarch_64 = "sha256-sgdZoaSM7LgK4DbbKPJO3FdBA37YAX86meaKDLQiOmg=";
-  linux-ppcle_64 = "sha256-k4nQGJNwtd8W4nJLyWPRhqjikczy7p7ffDIrWxkcUTA=";
-  linux-s390_64 = "sha256-fcuNlJeUmduFzqt5WaefYk3lFVmdHeSFIEkbwT2I1O0=";
-  linux-x86_32 = "sha256-KNvqGkeERd2UxzhjO/Fp6Uv7DGBt15rPGviRmH7pmno=";
-  linux-x86_64 = "sha256-7LI115E3BOz3jnHavkQBbN0hsjKuSbnXNAjXFw/D14I=";
-  osx-aarch_64 = "sha256-gAo2bcsivjDVFX5cUvzngoHgqTAPt+3Hiuynd17/KTo=";
-  osx-x86_64 = "sha256-gAo2bcsivjDVFX5cUvzngoHgqTAPt+3Hiuynd17/KTo=";
-  windows-x86_32 = "sha256-ERbksXFy4AFhZSFG9G4AMOi68EzEScBvDJFF9+rnPnU=";
-  windows-x86_64 = "sha256-wZU6on7A84fPm8xwD8pBgSk8+fkB14LdvWZXEniz8LU=";
-}
diff --git a/pkgs/by-name/pr/protoc-gen-grpc-java/package.nix b/pkgs/by-name/pr/protoc-gen-grpc-java/package.nix
index 277a914bfc7b..5d2dbdf68d18 100644
--- a/pkgs/by-name/pr/protoc-gen-grpc-java/package.nix
+++ b/pkgs/by-name/pr/protoc-gen-grpc-java/package.nix
@@ -33,13 +33,14 @@ let
           throw "Unsupported CPU \"${platform.parsed.cpu.name}\"";
     in
     "${os}-${arch}";
+  data = import ./data.nix;
 in
 stdenv.mkDerivation (finalAttrs: {
   pname = "protoc-gen-grpc-java";
-  version = "1.73.0";
+  inherit (data) version;
   src = fetchurl {
     url = "https://repo1.maven.org/maven2/io/grpc/protoc-gen-grpc-java/${finalAttrs.version}/protoc-gen-grpc-java-${finalAttrs.version}-${hostArch}.exe";
-    hash = (import ./hashes.nix).${hostArch} or (throw "Unsuported host arch ${hostArch}");
+    hash = data.hashes.${hostArch} or (throw "Unsuported host arch ${hostArch}");
   };
   dontUnpack = true;
   dontConfigure = true;
diff --git a/pkgs/by-name/pr/protoc-gen-grpc-java/update.sh b/pkgs/by-name/pr/protoc-gen-grpc-java/update.sh
index b0c8e2f98df4..f9fd21ff09b0 100755
--- a/pkgs/by-name/pr/protoc-gen-grpc-java/update.sh
+++ b/pkgs/by-name/pr/protoc-gen-grpc-java/update.sh
@@ -14,7 +14,7 @@ ARCHS=(
   'windows-x86_32'
   'windows-x86_64'
 )
-HASHES_FILE=pkgs/by-name/pr/protoc-gen-grpc-java/hashes.nix
+DATA_FILE=pkgs/by-name/pr/protoc-gen-grpc-java/data.nix
 
 version="$(
   curl --silent --location --fail \
@@ -24,10 +24,13 @@ version="$(
     sed 's/^v//'
 )"
 
-echo '{' >"${HASHES_FILE}"
+echo '{' >"${DATA_FILE}"
+echo "  version = \"${version}\";" >>"${DATA_FILE}"
+echo '  hashes = {' >>"${DATA_FILE}"
 for arch in "${ARCHS[@]}"; do
   url="https://repo1.maven.org/maven2/io/grpc/protoc-gen-grpc-java/${version}/protoc-gen-grpc-java-${version}-${arch}.exe"
   hash=$(nix --extra-experimental-features nix-command hash convert --hash-algo sha256 --to sri "$(nix-prefetch-url "${url}")")
-  echo "  ${arch} = \"${hash}\";" >>"${HASHES_FILE}"
+  echo "    ${arch} = \"${hash}\";" >>"${DATA_FILE}"
 done
-echo '}' >>"${HASHES_FILE}"
+echo '  };' >>"${DATA_FILE}"
+echo '}' >>"${DATA_FILE}"