diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index b980102..c9134c8 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -1,6 +1,7 @@
 name: Update Docs
 
 on:
+  workflow_dispatch:
   push:
     tags:
     - '*'
@@ -20,7 +21,8 @@ jobs:
     - name: Update docs
       run: |
         cd master-branch
-        version="${GITHUB_REF#refs/tags/}"
+        git fetch --prune --unshallow --tags
+        version="$(git describe --abbrev=0 --tags)"
 
         for v in `sort -rV <(printf '%s\n%s' "${version}" "$(ls ../docs-branch/versions)")`; do
           base="$(basename "${v}")"
@@ -32,6 +34,7 @@ jobs:
 
         cd ../docs-branch
         mkdir -p versions
+        [[ -e "versions/${version}" ]] && rm -rf "versions/${version}"
         mv ../docs-perm "versions/${version}"
         mv versions .git ../docs
         cd ../docs