diff --git a/.github/workflows/eosim-sanity.yml b/.github/workflows/eosim-sanity.yml
index f6d0403..d09e045 100644
--- a/.github/workflows/eosim-sanity.yml
+++ b/.github/workflows/eosim-sanity.yml
@@ -111,9 +111,12 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: "3.12"
+      - name: Install EoSim from source
+        run: |
+          git clone --depth 1 --branch v${{ env.EOSIM_VERSION }} https://github.com/embeddedos-org/EoSim.git /tmp/EoSim
+          pip install -e /tmp/EoSim
       - name: Test EoSim on Windows
         run: |
-          pip install "eosim @ https://github.com/embeddedos-org/EoSim/releases/download/v${{ env.EOSIM_VERSION }}/eosim-${{ env.EOSIM_VERSION }}-py3-none-any.whl"
           eosim --version
           eosim list && eosim doctor
           eosim list
@@ -127,9 +130,12 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: "3.12"
+      - name: Install EoSim from source
+        run: |
+          git clone --depth 1 --branch v${{ env.EOSIM_VERSION }} https://github.com/embeddedos-org/EoSim.git /tmp/EoSim
+          pip install -e /tmp/EoSim
       - name: Test EoSim on macOS
         run: |
-          pip install "eosim @ https://github.com/embeddedos-org/EoSim/releases/download/v${{ env.EOSIM_VERSION }}/eosim-${{ env.EOSIM_VERSION }}-py3-none-any.whl"
           eosim --version
           eosim list && eosim doctor
           eosim list