diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index a02fda8..5b47283 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -33,17 +33,7 @@ jobs:
         run: |
           python -m pip install pip --upgrade --disable-pip-version-check
           echo "$HOME/.local/bin" >> $GITHUB_PATH
-          pip install -e .[lint,test]
-
-      - name: Linting
-        run: |
-          flake8 --exit-zero
-
-      - name: Validate citation file
-        run: |
-          cffconvert --validate
-          cffconvert -f bibtex
-          cffconvert -f apalike
+          pip install -e .[test]
 
       - name: Run tests with required packages
         run: |
diff --git a/pyproject.toml b/pyproject.toml
index c631732..cebb417 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -52,10 +52,6 @@ extra = [
     "matplotlib",
     "netcdf4",
 ]
-lint = [
-    "cffconvert",
-    "flake8",
-]
 test = [
     "pytest >=3.3",
     "pytest-cov",