diff --git a/Makefile b/Makefile
index 199161f..4631090 100644
--- a/Makefile
+++ b/Makefile
@@ -108,9 +108,17 @@ clean:
 
 update:
 	@echo "*** updating ivoatex from github"
-	cd ivoatex && git checkout master
+	cd ivoatex && git checkout master && git pull
 	git submodule update --remote --rebase
 
+tag:
+	git tag $(versionedName)
+	git push origin --tags $(versionedName)
+
+untag:
+	git tag -d $(versionedName)
+	git push origin :$(versionedName)
+
 .FORCE:
 
 gitmeta.tex: .FORCE