diff --git a/.github/workflows/check.yaml b/.github/workflows/check.yaml
index c386ba5..eb34486 100644
--- a/.github/workflows/check.yaml
+++ b/.github/workflows/check.yaml
@@ -10,10 +10,10 @@ jobs:
 
     steps:
       - name: "Checkout Codebase"
-        uses: "actions/checkout@v4"
+        uses: "actions/checkout@v5"
 
       - name: "Install Nix"
-        uses: "DeterminateSystems/nix-installer-action@v17"
+        uses: "DeterminateSystems/nix-installer-action@v20"
 
       - name: "Check, Test and Build"
         run: |
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index cb2a624..5abf165 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -20,11 +20,11 @@ jobs:
 
       - name: "Checkout Codebase"
         if: "${{ steps.release.outputs.release_created }}"
-        uses: "actions/checkout@v4"
+        uses: "actions/checkout@v5"
 
       - name: "Install Nix"
         if: "${{ steps.release.outputs.release_created }}"
-        uses: "DeterminateSystems/nix-installer-action@v17"
+        uses: "DeterminateSystems/nix-installer-action@v20"
 
       - name: "Build Statically Compiled Executable"
         if: "${{ steps.release.outputs.release_created }}"
diff --git a/build-static.sh b/build-static.sh
index 76ab02e..f9152f3 100644
--- a/build-static.sh
+++ b/build-static.sh
@@ -9,7 +9,7 @@
 ## `--enable-executable-stripping`, hence the `strip` command usage.
 
 ## GHC version:
-GHC_VERSION="9.6.6"
+GHC_VERSION="9.8.4"
 
 ## Docker image:
 DOCKER_IMAGE="quay.io/benz0li/ghc-musl:${GHC_VERSION}"
diff --git a/flake.lock b/flake.lock
index 39e6067..6c006c6 100644
--- a/flake.lock
+++ b/flake.lock
@@ -20,16 +20,16 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1747485343,
-        "narHash": "sha256-YbsZyuRE1tobO9sv0PUwg81QryYo3L1F3R3rF9bcG38=",
+        "lastModified": 1761468971,
+        "narHash": "sha256-vY2OLVg5ZTobdroQKQQSipSIkHlxOTrIF1fsMzPh8w8=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "9b5ac7ad45298d58640540d0323ca217f32a6762",
+        "rev": "78e34d1667d32d8a0ffc3eba4591ff256e80576e",
         "type": "github"
       },
       "original": {
         "owner": "nixos",
-        "ref": "nixos-24.11",
+        "ref": "nixos-25.05",
         "repo": "nixpkgs",
         "type": "github"
       }
diff --git a/flake.nix b/flake.nix
index 438a131..d836a3b 100644
--- a/flake.nix
+++ b/flake.nix
@@ -2,7 +2,7 @@
   description = "Haskell Project Template";
 
   inputs = {
-    nixpkgs.url = "github:nixos/nixpkgs/nixos-24.11";
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-25.05";
     flake-utils.url = "github:numtide/flake-utils";
   };