diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 0c7881de7..2841c8603 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -64,7 +64,7 @@ jobs:
           #apt update
           apt-get update -y
           apt-get install -y postgresql-client
-          apt-get install -y python3-dev libxml2-dev libxslt1-dev zlib1g-dev
+          apt-get install -y python3-dev libxml2-dev libxslt1-dev zlib1g-dev libffi-dev libssl-dev
           
           # CkAN dependencies
           pip install -r requirement-setuptools.txt