diff --git a/.github/workflows/continuous_integration.yml b/.github/workflows/continuous_integration.yml
index c8e18cc..e33510b 100644
--- a/.github/workflows/continuous_integration.yml
+++ b/.github/workflows/continuous_integration.yml
@@ -183,6 +183,7 @@ jobs:
         with:
           auto-update-conda: true
           miniconda-version: "latest"
+          python-version: '3.8'
 
       - name: Install packages
         run: sudo apt-get update && sudo apt-get install --yes build-essential libtool autoconf pkg-config gfortran libopenblas-dev liblapack-dev freeglut3-dev libxi-dev libxmu-dev doxygen python3.8 python3-dev python3-numpy python3-setuptools
@@ -217,6 +218,7 @@ jobs:
         with:
           auto-update-conda: true
           miniconda-version: "latest"
+          python-version: '3.9'
 
       - name: Install packages
         run: sudo apt-get update && sudo apt-get install --yes build-essential libtool autoconf pkg-config gfortran libopenblas-dev liblapack-dev freeglut3-dev libxi-dev libxmu-dev doxygen python3 python3-dev python3-numpy python3-setuptools