diff --git a/Dockerfile b/Dockerfile
index 43663b95c..539b652c5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,11 +2,18 @@ FROM python:3.10-slim
 
 RUN apt-get clean
 RUN apt-get update
-RUN apt-get install -y curl pkg-config build-essential postgresql-client
-RUN curl -sSL https://install.python-poetry.org | python3 -
+RUN apt-get install -y curl pkg-config build-essential
 
+RUN curl -sSL https://install.python-poetry.org | python3 -
 ENV PATH="/root/.local/bin:$PATH"
 
+# needed for backups postgresql-client version 14 (pg_dump)
+RUN apt-get install wget
+RUN echo "deb http://apt.postgresql.org/pub/repos/apt bullseye-pgdg main" > /etc/apt/sources.list.d/pgdg.list
+RUN wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | apt-key add -
+RUN apt-get update
+RUN apt-get install postgresql-client-14
+
 WORKDIR /app
 
 COPY . .