diff --git a/Dockerfile b/Dockerfile
index 38b5dfa..98224b8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,8 +7,9 @@ RUN apk add --no-cache hugo git
 # Copy the repository contents
 COPY . .
 
-# Initialize submodules if not done
-RUN git submodule update --init
+# Initialize and update submodules
+RUN git submodule init && \
+    git submodule update --init --recursive
 
 # Build the site
 RUN hugo --minify