diff --git a/.dockerignore b/.dockerignore
index 25d334d6d..f51c422df 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -3,6 +3,7 @@
 /*
 !/composer.*
 !/config/
+!/external/
 !/src/
 !/vendor/
 !/webroot/