diff --git a/docker/Dockerfile-dhvirtualenv b/docker/Dockerfile-dhvirtualenv
index 224c92352d..3de032cf8c 100644
--- a/docker/Dockerfile-dhvirtualenv
+++ b/docker/Dockerfile-dhvirtualenv
@@ -55,7 +55,8 @@ RUN apt-get update -qq -o Acquire::Languages=none \
         python3-pip \
         python3-setuptools \
         python3-venv \
-        sqlite3
+        sqlite3 \
+        libpq-dev
 
 COPY --from=builder /dh-virtualenv_1.1-1_all.deb /