diff --git a/Dockerfile b/Dockerfile
index d4662ad..c9e800e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -128,7 +128,7 @@ RUN mkdir -p "$OWSEC_ROOT" "$OWSEC_CONFIG" && \
 
 RUN apt-get update && apt-get install --no-install-recommends -y \
     librdkafka++1 gosu gettext ca-certificates bash jq curl wget \
-    libmariadb-dev-compat libpq5 unixodbc
+    libmariadb-dev-compat libpq5 unixodbc postgresql-client
 
 COPY readiness_check /readiness_check
 COPY test_scripts/curl/cli /cli