diff --git a/docker/back/Dockerfile b/docker/back/Dockerfile
index 8a4c834..163f732 100644
--- a/docker/back/Dockerfile
+++ b/docker/back/Dockerfile
@@ -3,7 +3,7 @@ FROM ubuntu:xenial
 ENV LANG=C.UTF-8
 ENV LC_ALL=C.UTF-8
 
-RUN apt update && apt install -y libgmp-dev
+RUN apt update && apt install -y libgmp-dev libpq-dev
 
 WORKDIR /opt/guide