diff --git a/src/test/docker/Dockerfile b/src/test/docker/Dockerfile
index 1752f88c159a1d6d950b30c7bf6dac32c8823b06..29b98756247c44608a70066a81a9e71b84789f64 100644
--- a/src/test/docker/Dockerfile
+++ b/src/test/docker/Dockerfile
@@ -3,6 +3,7 @@ RUN apt-get update && \
   apt-get install -y \
     git make mariadb-server maven openjdk-11-jdk-headless \
     plantuml \
+    libfreetype-dev \
     python3-pip screen libpam0g-dev unzip curl shunit2 \
     python3-sphinx