diff --git a/roles/re2o-service/tasks/main.yml b/roles/re2o-service/tasks/main.yml
index 74ac8fd..5b7d039 100644
--- a/roles/re2o-service/tasks/main.yml
+++ b/roles/re2o-service/tasks/main.yml
@@ -2,7 +2,15 @@
 # Create service user
 - include_tasks: service_user.yml
 
-# python3-iso8601 python3-jinja2
+- name: Install Python dependencies
+  apt:
+    name:
+      - python3-iso8601
+      - python3-jinja2
+    update_cache: true
+  register: apt_result
+  retries: 3
+  until: apt_result is succeeded
 
 - name: "Clone re2o {{ service_name }} project"
   git: