diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 2751724..25dcdb4 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -18,10 +18,8 @@ jobs:
     needs: ormolu
     strategy:
       matrix:
-        cabal: ["3.10"]
+        cabal: ["3.12"]
         ghc: ["9.8.4", "9.10.1", "9.12.1"]
-    env:
-      CONFIG: "--enable-tests --enable-benchmarks --flags=dev"
     steps:
       - uses: actions/checkout@v4
       - uses: haskell-actions/setup@v2
@@ -30,7 +28,7 @@ jobs:
           ghc-version: ${{ matrix.ghc }}
           cabal-version: ${{ matrix.cabal }}
       - run: cabal update
-      - run: cabal freeze $CONFIG
+      - run: cabal freeze
       - uses: actions/cache@v4.0.0
         with:
           path: |
@@ -40,7 +38,7 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-${{ matrix.ghc }}-
       - run: cabal format && git diff --exit-code --color=always
-      - run: cabal build $CONFIG
-      - run: cabal test $CONFIG
-      - run: cabal haddock $CONFIG
+      - run: cabal build
+      - run: cabal test
+      - run: cabal haddock
       - run: cabal sdist
diff --git a/cabal.project b/cabal.project
new file mode 100644
index 0000000..0b24ec0
--- /dev/null
+++ b/cabal.project
@@ -0,0 +1,4 @@
+packages: .
+tests: True
+benchmarks: True
+constraints: hspec-megaparsec +dev