diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index e347fd5..ec7d995 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -15,6 +15,7 @@ jobs:
           packages: python3-yaml
       - name: Compile LaTeX sources
         run: |
+          apt install python3-yaml
           ./render --master-tex Snakemake_HPC_Users.tex --configfile config/config_for_github.yaml
           ./render --master-tex Snakemake_HPC_Creators.tex --configfile config/config_for_github.yaml
       - name: Upload .pdf File