diff --git a/src/data/document.py b/src/data/document.py
index 12956fe..feada18 100644
--- a/src/data/document.py
+++ b/src/data/document.py
@@ -82,7 +82,7 @@ class Document:
 		
 		if multiversion_build:
 			# also fetch all branches and tags, so that sphinx-multiversion knows what versions exist and can pull them
-			cmd.append(['git', 'fetch', '--all'])
+			cmd.append(['git', 'fetch', '--all', '--tags', '--force'])
 			cmd.append(['bash', '-c', 'for BRANCH in $(git branch -a | grep remotes | grep -v HEAD | grep -v master); do git branch --track "${BRANCH#remotes/origin/}" "${BRANCH}" || git branch -f "${BRANCH#remotes/origin/}" -t "${BRANCH}"; done'])
 		
 			# build the HTML version