diff --git a/Dockerfile b/Dockerfile
index c2caa56..1ef6d88 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM lthub/moodle:4.1.9
+FROM lthub/moodle:4.1.9-1
 MAINTAINER Tyler Cinkant <tyler.cinkant@ubc.ca>
 
 RUN curl -L https://moodle.org/plugins/download.php/29228/mod_questionnaire_moodle42_2022092202.zip -o /questionnaire.zip \