diff --git a/alpine.dockerfile b/alpine.dockerfile
index b93c4b7..ca3c26a 100644
--- a/alpine.dockerfile
+++ b/alpine.dockerfile
@@ -24,6 +24,7 @@ RUN echo '@testing https://dl-cdn.alpinelinux.org/alpine/edge/testing' >> /etc/a
 
 # install kavita dependencies
 # icu
+# vips
 RUN apk add \
     icu-dev libssl1.1 curl \
     libgdiplus@testing