diff --git a/roles/common/tasks/main.yml b/roles/common/tasks/main.yml
index 1fad8ba..c3527bc 100644
--- a/roles/common/tasks/main.yml
+++ b/roles/common/tasks/main.yml
@@ -3,7 +3,7 @@
 ---
 - name: Update and upgrade apt packages
   apt:
-    upgrade: yes
+    upgrade: "yes"
     update_cache: yes
     # One day
     cache_valid_time: 86400
diff --git a/roles/desktop/tasks/main.yml b/roles/desktop/tasks/main.yml
index f55a20c..cf83372 100644
--- a/roles/desktop/tasks/main.yml
+++ b/roles/desktop/tasks/main.yml
@@ -30,7 +30,7 @@
       - "ppa:lutris-team/lutris"
   - name: Update and upgrade apt packages
     apt:
-      upgrade: yes
+      upgrade: "yes"
       update_cache: yes
       # One day
       cache_valid_time: 86400