diff --git a/Dockerfile b/Dockerfile
index 4f1e9c3..ccd2941 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -31,6 +31,8 @@ RUN apk update && apk add --no-cache \
     && docker-php-ext-install -j$(nproc) gd \
     && apk del wget gnupg g++ icu-dev libzip-dev
 
+RUN apk add postgresql${POSTGRES_VERSION}-client
+
 RUN apk del oniguruma-dev linux-headers gcc make autoconf
 
 # "ERROR: Package cache is not enabled." \