diff --git a/Makefile b/Makefile
index a7e175e76b..b4fa62e05e 100644
--- a/Makefile
+++ b/Makefile
@@ -959,7 +959,7 @@ generate-gitignore:
 
 .PHONY: generate-images
 generate-images: | node_modules
-	npm install --no-save fabric@6.0.0-beta19 imagemin-zopfli@7
+	npm install --no-save fabric@6.0.0-beta20 imagemin-zopfli@7
 	node tools/generate-images.js $(TAGS)
 
 .PHONY: generate-manpage