diff --git a/.github/workflows/test-sundials.yml b/.github/workflows/test-sundials.yml
index 2b5cef8..f2285c4 100644
--- a/.github/workflows/test-sundials.yml
+++ b/.github/workflows/test-sundials.yml
@@ -143,9 +143,9 @@ jobs:
             tox-env: py39
           - python-version: "3.13"
             tox-env: py313
-        # exclude:
-        #   - os: windows-latest  # Issue with tox venv, pip has no ssl access
-        #     python-version: "3.9"
+        exclude:
+          - os: windows-latest  # Issue with tox venv, pip has no ssl access
+            python-version: "3.9"
         
     defaults:
       run:
@@ -171,7 +171,7 @@ jobs:
           conda info
           conda list
 
-      - name: Set SUNDIALS and SSL paths
+      - name: Set SUNDIALS path
         run: |
           if [[ "$RUNNER_OS" == "Windows" ]]; then
             SUNDIALS_INST="$CONDA_PREFIX\Library"
@@ -182,9 +182,6 @@ jobs:
           echo "SUNDIALS_INST is set to: $SUNDIALS_INST"
           echo "SUNDIALS_INST=$SUNDIALS_INST" >> $GITHUB_ENV
 
-          echo "SSL_CERT_FILE is at: $SSL_CERT_FILE"
-          echo "SSL_CERT_FILE=$SSL_CERT_FILE" >> $GITHUB_ENV
-
       - name: Install python dependencies
         run: |
           python -m pip install --upgrade pip
diff --git a/packages/scikits-odes-sundials/tox.ini b/packages/scikits-odes-sundials/tox.ini
index 06968e9..d924136 100644
--- a/packages/scikits-odes-sundials/tox.ini
+++ b/packages/scikits-odes-sundials/tox.ini
@@ -13,7 +13,6 @@ passenv=
     CPATH
     PIP_VERBOSE
     PYTHONFAULTHANDLER
-    SSL_CERT_FILE
 deps =
     pytest
     -r local-requirements.txt