diff --git a/tasks/main.yml b/tasks/main.yml
index 70bbe19..6b6daf6 100644
--- a/tasks/main.yml
+++ b/tasks/main.yml
@@ -1,12 +1,12 @@
 - name: install backports apt list
   apt_repository:
     filename: backports
-    repo: "deb http://ftp.de.debian.org/debian {{ansible_distribution_release}}-backports main"
+    repo: "deb http://ftp.de.debian.org/debian {{ansible_distribution_release}}-backports main contrib non-free"
 
 - name: install backports sources apt list
   apt_repository:
     filename: backports
-    repo: "deb-src http://ftp.de.debian.org/debian {{ansible_distribution_release}}-backports main"
+    repo: "deb-src http://ftp.de.debian.org/debian {{ansible_distribution_release}}-backports main contrib non-free"
 
 - name: remove obsolete apt lists
   file: path=/etc/apt/sources.list.d/{{ item }}-backports.list state=absent