diff --git a/docker/tests/Dockerfile b/docker/tests/Dockerfile
index a0cc7f8..f191ddf 100644
--- a/docker/tests/Dockerfile
+++ b/docker/tests/Dockerfile
@@ -27,6 +27,7 @@
     python3 -m easy_install pip==21.0.1
 
 RUN DEBIAN_FRONTEND=noninteractive apt-get --yes install \
+    gettext-base \
     git=1:2.17.1-1ubuntu0.8 \
     jq=1.5+dfsg-2 \
     libcurl4-openssl-dev=7.58.0-2ubuntu3.13 \