diff --git a/readme.md b/readme.md
index cd4a9fe..ef8ca09 100644
--- a/readme.md
+++ b/readme.md
@@ -4,6 +4,6 @@ Scheduling overview for Vatsim Germany's Forum.
 Output as a jpg.
 
 Using the following python dependancies
-imgkit
+imgkit, which in turn depends on wkhtmltopdf
 dateutil
 requests
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