diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index f9c800b..fcd1638 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -4,6 +4,7 @@ on:
   push:
     branches:
       - main
+      - ghc-9.8
 
   pull_request:
     branches:
diff --git a/README.md b/README.md
index 013229d..4b8296b 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@
 # nix-hs-tools
 
 [![GitHub release (latest SemVer)](https://img.shields.io/github/v/tag/tbidne/nix-hs-tools?include_prereleases&sort=semver)](https://github.com/tbidne/nix-hs-tools/releases/)
-![haskell](https://img.shields.io/static/v1?label=&message=9.6&logo=haskell&logoColor=655889&labelColor=2f353e&color=655889)
+![haskell](https://img.shields.io/static/v1?label=&message=9.8&logo=haskell&logoColor=655889&labelColor=2f353e&color=655889)
 [![ci](http://img.shields.io/github/actions/workflow/status/tbidne/nix-hs-tools/ci.yaml?branch=main&logoColor=85c5e7&labelColor=2f353c)](https://github.com/tbidne/nix-hs-tools/actions/workflows/ci.yaml)
 [![MIT](https://img.shields.io/github/license/tbidne/nix-hs-tools?color=blue)](https://opensource.org/licenses/MIT)
 
diff --git a/flake.lock b/flake.lock
index 58f4dbf..83c5916 100644
--- a/flake.lock
+++ b/flake.lock
@@ -5,11 +5,11 @@
         "nixpkgs-lib": "nixpkgs-lib"
       },
       "locked": {
-        "lastModified": 1693611461,
-        "narHash": "sha256-aPODl8vAgGQ0ZYFIRisxYG5MOGSkIczvu2Cd8Gb9+1Y=",
+        "lastModified": 1706830856,
+        "narHash": "sha256-a0NYyp+h9hlb7ddVz4LUn1vT/PLwqfrWYcHMvFB1xYg=",
         "owner": "hercules-ci",
         "repo": "flake-parts",
-        "rev": "7f53fdb7bdc5bb237da7fefef12d099e4fd611ca",
+        "rev": "b253292d9c0a5ead9bc98c4e9a26c6312e27d69f",
         "type": "github"
       },
       "original": {
@@ -20,11 +20,11 @@
     },
     "nix-hs-utils": {
       "locked": {
-        "lastModified": 1693952689,
-        "narHash": "sha256-kJdLUPMBEv4c0ZaSbL1PmUpId8/TqytWZozkxCRqnj0=",
+        "lastModified": 1695340755,
+        "narHash": "sha256-yb1FM96YxM9wVSkaSGZHCuNoLHeCdn5R0BAfSXJwTwY=",
         "owner": "tbidne",
         "repo": "nix-hs-utils",
-        "rev": "9c301a86474ee5736c9572f5b8ff8dbc273c363c",
+        "rev": "2ee3a794e1534af18d4115119e5f5da63f0e4fa3",
         "type": "github"
       },
       "original": {
@@ -35,11 +35,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1694767346,
-        "narHash": "sha256-5uH27SiVFUwsTsqC5rs3kS7pBoNhtoy9QfTP9BmknGk=",
+        "lastModified": 1707268954,
+        "narHash": "sha256-2en1kvde3cJVc3ZnTy8QeD2oKcseLFjYPLKhIGDanQ0=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "ace5093e36ab1e95cb9463863491bee90d5a4183",
+        "rev": "f8e2ebd66d097614d51a56a755450d4ae1632df1",
         "type": "github"
       },
       "original": {
@@ -52,11 +52,11 @@
     "nixpkgs-lib": {
       "locked": {
         "dir": "lib",
-        "lastModified": 1693471703,
-        "narHash": "sha256-0l03ZBL8P1P6z8MaSDS/MvuU8E75rVxe5eE1N6gxeTo=",
+        "lastModified": 1706550542,
+        "narHash": "sha256-UcsnCG6wx++23yeER4Hg18CXWbgNpqNXcHIo5/1Y+hc=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "3e52e76b70d5508f3cec70b882a29199f4d1ee85",
+        "rev": "97b17f32362e475016f942bbdfda4a4a72a8a652",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index 02608fb..58a4e5e 100644
--- a/flake.nix
+++ b/flake.nix
@@ -12,13 +12,12 @@
     flake-parts.lib.mkFlake { inherit inputs; } {
       perSystem = { pkgs, ... }:
         let
-          ghcVers = "ghc962";
+          ghcVers = "ghc981";
           compiler = pkgs.haskell.packages."${ghcVers}".override {
             overrides = final: prev: {
               # For some reason, the cabal-fmt in nixpkgs does not have /bin
               # i.e. no executable.
-              cabal-fmt = final.callHackage "cabal-fmt" "0.1.7" { };
-              implicit-hie = prev.implicit-hie_0_1_4_0;
+              cabal-fmt = final.callHackage "cabal-fmt" "0.1.10" { };
             };
           };