diff --git a/molecule/centos7/converge.yml b/molecule/centos7/converge.yml
index 47a886b..2bfe5af 100644
--- a/molecule/centos7/converge.yml
+++ b/molecule/centos7/converge.yml
@@ -1,6 +1,8 @@
 ---
 - name: Converge
   hosts: all
+  vars:
+    certbot_pip: pip3
 
   roles:
     - role: xoxys.python3