diff --git a/backend/Dockerfile.prod b/backend/Dockerfile.prod
index 3e3875f..61f536d 100644
--- a/backend/Dockerfile.prod
+++ b/backend/Dockerfile.prod
@@ -6,7 +6,7 @@ RUN apt-get -y update && apt-get -y upgrade
 
 COPY requirements.txt .
 
-RUN apk install sqlite3
+RUN apt-get -y install sqlite3
 
 RUN pip install -r requirements.txt
 
diff --git a/backend/requirements.txt b/backend/requirements.txt
index 75a45e2..3458910 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -1,3 +1,4 @@
+autopep8==1.5.7
 blinker==1.4
 click==7.1.2
 Deprecated==1.2.12
@@ -16,11 +17,13 @@ MarkupSafe==1.1.1
 passlib==1.7.4
 pendulum==2.1.2
 py-buzz==1.0.3
+pycodestyle==2.7.0
 PyJWT==2.1.0
 python-dateutil==2.8.1
 python-dotenv==0.17.1
 pytzdata==2020.1
 six==1.16.0
 SQLAlchemy==1.4.15
+toml==0.10.2
 Werkzeug==1.0.1
 wrapt==1.12.1