diff --git a/.github/workflows/conda_pip.yml b/.github/workflows/conda_pip.yml
index 74ba0ef9..c6bd37cd 100644
--- a/.github/workflows/conda_pip.yml
+++ b/.github/workflows/conda_pip.yml
@@ -174,6 +174,14 @@ jobs:
           python -mpip install -r "${REQUIREMENTS_CI}"
           python -mpip install ./
 
+      - name: "Install python dependencies for pyposeidon + telemac"
+        run: |
+          eval "$(micromamba shell hook)"
+          micromamba activate --stack "${PYPOS_TEL_ENV}"
+          python -mpip install -U pip
+          python -mpip install -r "${REQUIREMENTS_CI}"
+          python -mpip install ./
+
       - name: "Run tests: Basic"
         run: |
           eval "$(micromamba shell hook)"