diff --git a/.github/workflows/snapshot.yml b/.github/workflows/snapshot.yml
index 131772c..0880357 100644
--- a/.github/workflows/snapshot.yml
+++ b/.github/workflows/snapshot.yml
@@ -25,8 +25,9 @@ jobs:
         
       - name: upload kotlin doc
         run: |
-          mkdir docs
-          mv lib/build/dokka/html/* docs/
+          rm -rf docs/*
+          mkdir -p docs
+          mv -f lib/build/dokka/html/* docs/
           git config --global user.name 'Github Actions'
           git config --global user.email 'ci_activity@noreply.github.com'
           git add -A