diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index ecb694d..4aafeb6 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -83,6 +83,7 @@ jobs:
             sudo apt-get update -y
             sudo apt-get install -y python3-pip
             sudo apt-get install zlib1g libjpeg-dev libatlas-base-dev rustc libopenjp2-7 python3-dev scons libssl-dev python3-venv python3-pip git libfreetype6-dev -y
+            sudo apt-get install python3.9 -y
             echo $PWD && ls
             
       - name: Install Inkycal and run tests