diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f4f1e1a..44a6750 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -10,6 +10,24 @@ on:
     - cron: '0 0 * * 0'
 
 jobs:
+  hlint:
+    name: hlint
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Set up HLint
+        uses: haskell/actions/hlint-setup@v2
+        with:
+          version: "3.5"
+
+      - name: Run Hlint
+        uses: haskell/actions/hlint-run@v2
+        with:
+          path: '["src/", "test/"]'
+          fail-on: suggestion
+
   cabal:
     name: ${{ matrix.os }} / ghc ${{ matrix.ghc }}
     runs-on: ${{ matrix.os }}
diff --git a/.hlint.yaml b/.hlint.yaml
new file mode 100644
index 0000000..8b0c4e5
--- /dev/null
+++ b/.hlint.yaml
@@ -0,0 +1 @@
+# Warnings currently triggered by your code
diff --git a/test/Test/Colourista.hs b/test/Test/Colourista.hs
index 17cad46..ad656a0 100644
--- a/test/Test/Colourista.hs
+++ b/test/Test/Colourista.hs
@@ -1,5 +1,3 @@
-{-# LANGUAGE ImplicitParams #-}
-
 module Test.Colourista
     ( colouristaSpec
     ) where