diff --git a/.drone.yml b/.drone.yml
index ac2b974..14ffabb 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -63,12 +63,30 @@ steps:
     commands:
       - |
         if [ "$DRONE_BUILD_EVENT" = "tag" ]; then
-          DEST="/publish/$DRONE_REPO/$DRONE_TAG"
+          VERSION="$DRONE_TAG"
         else
-          DEST="/publish/$DRONE_REPO/latest"
+          VERSION="latest"
         fi
+        DEST="/publish/$DRONE_REPO/$VERSION"
         mkdir -p "$DEST"
         cp build/bootloader.bin build/partitions.bin build/firmware.bin "$DEST/"
+        cat > "$DEST/manifest.json" <<EOF
+        {
+          "name": "firmware",
+          "version": "$VERSION",
+          "new_install_prompt_erase": true,
+          "builds": [
+            {
+              "chipFamily": "ESP32",
+              "parts": [
+                { "path": "bootloader.bin", "offset": 4096 },
+                { "path": "partitions.bin", "offset": 32768 },
+                { "path": "firmware.bin", "offset": 65536 }
+              ]
+            }
+          ]
+        }
+        EOF
         chmod -R a+rX "/publish/$DRONE_REPO_OWNER"
         echo "公開先: https://flash.j-code.org/download/${DEST#/publish/}/"
     when: