Pongo apt-get update

Dockerfile

@@ -8,7 +8,7 @@ ADD . $APP_HOME
 USER 0
 
 # Install the dependencies
-RUN apt-get install -y sqlite3
+RUN apt-get update && apt-get install -y sqlite3
 
 RUN pip install -U "pip>=19.3.1" && \
     pip install -r $APP_HOME/requirements.txt && \