diff --git a/Dockerfile b/Dockerfile
index 50c74b9..01552f5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,7 @@ FROM reg.zknt.org/zknt/python
 
 COPY requirements.txt /app/requirements.txt
 WORKDIR /app
-RUN apk add --no-cache gcc libxml2 libxslt libxml2-dev musl-dev libxslt-dev python3-dev && pip3 install -r requirements.txt && apk del gcc libxml2-dev musl-dev libxslt-dev python3-dev
+RUN apk add --no-cache gdbm gcc libxml2 libxslt libxml2-dev musl-dev libxslt-dev python3-dev && pip3 install -r requirements.txt && apk del gcc libxml2-dev musl-dev libxslt-dev python3-dev
 
 COPY . /app
 ENV FLASK_APP=app.py