diff --git a/Dockerfile b/Dockerfile
index 3bd635f..c835620 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,9 +3,11 @@
 # Update to have latest images
 RUN apk add --update python py-pip
 
+COPY requirements.txt /tmp/requirements.txt
+
 # Install app dependencies
 RUN apk add build-base gcc abuild binutils python-dev && \
-    pip install scapy twisted && \
+    pip install -r /tmp/requirements.txt && \
     apk del --purge build-base gcc abuild binutils python-dev
 
 # Bundle app source
diff --git a/ansible/roles/common/defaults/main.yml b/ansible/roles/common/defaults/main.yml
index 46f473c..d8351fb 100644
--- a/ansible/roles/common/defaults/main.yml
+++ b/ansible/roles/common/defaults/main.yml
@@ -5,6 +5,9 @@
 use_latest_for:
   - debian-keyring
   - debian-archive-keyring
+  - python-dev
+  - libssl-dev
+  - python-virtualenv
 
 obsolete_services:
   - puppet