diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 3bade419d..468dc9029 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -178,7 +178,14 @@ jobs:
         run: |
             python -m pip install --upgrade pip
             python -m pip install -r requirements.txt
-            python -m pip install mypy jax jaxlib torch
-            python setup.py install
+            python -m pip install mypy
+            python -m pip install .
+      - name: "Install additional dependencies"
+        run: python -m pip install jax jaxlib torch
+        if: ${{ matrix.python-version != '3.7' }}
       - name: "Run mypy"
         run: python -m mypy --install-types --non-interactive pysr
+        if: ${{ matrix.python-version != '3.7' }}
+      - name: "Run compatible mypy"
+        run: python -m mypy --ignore-missing-imports pysr
+        if: ${{ matrix.python-version == '3.7' }}