diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 31b2674..e255b93 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -21,10 +21,10 @@
             - uses: cachix/install-nix-action@v19
               with:
                   github_access_token: ${{ secrets.GITHUB_TOKEN }}
-            - run: nix develop --command pnpm install --frozen-lockfile
+            - run: nix develop .#pure --command pnpm install --frozen-lockfile
             - name: Show versions
-              run: nix develop --command pnpm run versions
+              run: nix develop .#pure --command pnpm run versions
             - name: Compile
-              run: nix develop --command pnpm run build build
+              run: nix develop .#pure --command pnpm run build build
             - name: Run prettier and eslint
-              run: nix develop --command pnpm run lint-ci
+              run: nix develop .#pure --command pnpm run lint-ci