diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 170985a..31ff419 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -22,4 +22,5 @@ jobs:
       - uses: yaxitech/nix-install-pkgs-action@v3
         with:
           packages: "github:srid/nixci"
-      - run: nixci
+      - run: nixci build
+      - run: nix develop -c ghc --version
diff --git a/flake.lock b/flake.lock
index 66739a5..e754ac1 100644
--- a/flake.lock
+++ b/flake.lock
@@ -5,11 +5,11 @@
         "nixpkgs-lib": "nixpkgs-lib"
       },
       "locked": {
-        "lastModified": 1706830856,
-        "narHash": "sha256-a0NYyp+h9hlb7ddVz4LUn1vT/PLwqfrWYcHMvFB1xYg=",
+        "lastModified": 1709336216,
+        "narHash": "sha256-Dt/wOWeW6Sqm11Yh+2+t0dfEWxoMxGBvv3JpIocFl9E=",
         "owner": "hercules-ci",
         "repo": "flake-parts",
-        "rev": "b253292d9c0a5ead9bc98c4e9a26c6312e27d69f",
+        "rev": "f7b3c975cf067e56e7cda6cb098ebe3fb4d74ca2",
         "type": "github"
       },
       "original": {
@@ -35,11 +35,11 @@
     },
     "haskell-flake": {
       "locked": {
-        "lastModified": 1710366817,
-        "narHash": "sha256-ZhsDYmmCB/XVTjovbaOuLkLtbCRqS1UdVDAlc0qiS0Q=",
+        "lastModified": 1711654339,
+        "narHash": "sha256-FgzDSS4Hlq9SOCu2VC9Eea6cT3jis0pxg+6cYBuJA18=",
         "owner": "srid",
         "repo": "haskell-flake",
-        "rev": "00d1850d10614e9ba7caf3b78aabd7975e48d848",
+        "rev": "474fcb07635972baa325e47db84cc2195712da5a",
         "type": "github"
       },
       "original": {
@@ -50,11 +50,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1709200309,
-        "narHash": "sha256-lKdtMbhnBNU1lr978T+wEYet3sfIXXgyiDZNEgx8CV8=",
+        "lastModified": 1711624657,
+        "narHash": "sha256-IViG6BKCJY/I6oRNfAANf/QitYylepQSCzgam0TF+bs=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "ebe6e807793e7c9cc59cf81225fdee1a03413811",
+        "rev": "72c6ed328aa4e5d9151b1a512f6ad83aca7529fa",
         "type": "github"
       },
       "original": {
@@ -67,11 +67,11 @@
     "nixpkgs-lib": {
       "locked": {
         "dir": "lib",
-        "lastModified": 1706550542,
-        "narHash": "sha256-UcsnCG6wx++23yeER4Hg18CXWbgNpqNXcHIo5/1Y+hc=",
+        "lastModified": 1709237383,
+        "narHash": "sha256-cy6ArO4k5qTx+l5o+0mL9f5fa86tYUX3ozE1S+Txlds=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "97b17f32362e475016f942bbdfda4a4a72a8a652",
+        "rev": "1536926ef5621b09bba54035ae2bb6d806d72ac8",
         "type": "github"
       },
       "original": {
@@ -114,11 +114,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1708897213,
-        "narHash": "sha256-QECZB+Hgz/2F/8lWvHNk05N6NU/rD9bWzuNn6Cv8oUk=",
+        "lastModified": 1711531821,
+        "narHash": "sha256-5n4hq7PsH8g9czJ5HvXpVrJ4AiJdzrutHK01oKIaCXE=",
         "owner": "numtide",
         "repo": "treefmt-nix",
-        "rev": "e497a9ddecff769c2a7cbab51e1ed7a8501e7a3a",
+        "rev": "c2172ef83d6904cdff3118e0c08e89171db6028a",
         "type": "github"
       },
       "original": {
diff --git a/haskell-template.cabal b/haskell-template.cabal
index 8da86b6..7562b19 100644
--- a/haskell-template.cabal
+++ b/haskell-template.cabal
@@ -77,7 +77,7 @@ common shared
   build-depends:
     , aeson
     , async
-    , base          >=4.13.0.0 && <4.18.0.0.0
+    , base          >=4   && <5
     , data-default
     , directory
     , filepath