diff --git a/.gitea/workflows/update_swagger.yaml b/.gitea/workflows/update_swagger.yaml
index 319db84d..1bdef584 100644
--- a/.gitea/workflows/update_swagger.yaml
+++ b/.gitea/workflows/update_swagger.yaml
@@ -11,13 +11,21 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - run: |
-          wget https://github.com/go-gitea/gitea/blob/main/templates/swagger/v1_json.tmpl
-          sed -i "$@" 's/"version": "{{AppVer | JSEscape}}"/"version": "dev"/' static/swagger-latest.json
-          rm v1_json.tmpl
+          wget https://raw.githubusercontent.com/go-gitea/gitea/refs/heads/main/templates/swagger/v1_json.tmpl
+          sed -i "$@" 's\"version": "{{AppVer | JSEscape}}"\"version": "dev"\' v1_json.tmpl
+          sed -i "$@" 's\"basePath": "{{AppSubUrl | JSEscape}}/api/v1"\"basePath": "https://gitea.com/api/v1"\' v1_json.tmpl
+          mv v1_json.tmpl static/swagger-latest.json
 
-          wget https://github.com/go-gitea/gitea/blob/v1.23.0/templates/swagger/v1_json.tmpl
-          sed -i "$@" 's/"version": "{{AppVer | JSEscape}}"/"version": "1.23.1"/' static/swagger-23.json
-          rm v1_json.tmpl
+          for ver in '1.23.1' '1.22.6' '1.21.11' '1.20.6' '1.19.4'; do
+            wget https://raw.githubusercontent.com/go-gitea/gitea/refs/tags/v${ver}/templates/swagger/v1_json.tmpl
+            sed -i "$@" "s|\"version\": \"{{AppVer \| JSEscape}}\"|\"version\": \"${ver}\"|" v1_json.tmpl
+            sed -i "$@" 's\"basePath": "{{AppSubUrl | JSEscape}}/api/v1"\"basePath": "https://gitea.com/api/v1"\' v1_json.tmpl
+            # for version < 1.21.11
+            sed -i "$@" "s|\"version\": \"{{AppVer \| JSEscape \| Safe}}\"|\"version\": \"${ver}\"|" v1_json.tmpl
+            sed -i "$@" 's\"basePath": "{{AppSubUrl | JSEscape | Safe}}/api/v1"\"basePath": "https://gitea.com/api/v1"\' v1_json.tmpl
+            minor=$(echo "$ver" | cut -d '.' -f 2)
+            mv v1_json.tmpl static/swagger-$minor.json
+          done
 
           if ! [[ $(git diff --shortstat) ]]; then exit 0; fi
           git config --global user.name "Gitea Bot"