diff --git a/tests/dockerfiles/Dockerfile.alpine b/tests/dockerfiles/Dockerfile.alpine
index bd4608ca9..b5cce6e24 100644
--- a/tests/dockerfiles/Dockerfile.alpine
+++ b/tests/dockerfiles/Dockerfile.alpine
@@ -12,7 +12,7 @@ RUN apk add --no-cache make g++ && \
 ADD https://github.com/mlocati/docker-php-extension-installer/releases/latest/download/install-php-extensions /usr/local/bin/
 
 RUN chmod +x /usr/local/bin/install-php-extensions && \
-    install-php-extensions pcntl uv-beta ffi pq memprof intl gmp mbstring pdo_mysql xml dom iconv zip igbinary gd && \
+    install-php-extensions pcntl uv-beta ffi pgsql memprof intl gmp mbstring pdo_mysql xml dom iconv zip igbinary gd && \
     rm /usr/local/bin/install-php-extensions
 
 RUN apk add --no-cache ffmpeg nghttp2 jemalloc