diff --git a/Containers/postgresql/Dockerfile b/Containers/postgresql/Dockerfile
index ccf22d09..838ada09 100644
--- a/Containers/postgresql/Dockerfile
+++ b/Containers/postgresql/Dockerfile
@@ -1,7 +1,7 @@
 # From https://github.com/docker-library/postgres/blob/master/13/alpine/Dockerfile
 FROM postgres:14.4-alpine
 
-RUN apk add --update --no-cache bash openssl shadow netcat-openbsd
+RUN apk add --update --no-cache bash openssl shadow netcat-openbsd grep
 
 # We need to use the same gid and uid as on old installations
 RUN set -ex; \