diff --git a/.github/scripts/update_skill.py b/.github/scripts/update_skill.py
index 861821b9..cc19423c 100644
--- a/.github/scripts/update_skill.py
+++ b/.github/scripts/update_skill.py
@@ -18,7 +18,8 @@
 import sys
 
 def get_gemini_response(api_key, prompt):
-    url = f"https://generativelanguage.googleapis.com/v1beta/models/gemini-2.5-flash:generateContent?key={api_key}"
+    model = os.getenv("GEMINI_MODEL") or "gemini-3.8-flash"
+    url = f"https://generativelanguage.googleapis.com/v1beta/models/{model}:generateContent?key={api_key}"
     headers = {'Content-Type': 'application/json'}
     data = {
         "contents": [{
diff --git a/.github/workflows/update-skill.yml b/.github/workflows/update-skill.yml
index 0003d0cd..d0a5f4bc 100644
--- a/.github/workflows/update-skill.yml
+++ b/.github/workflows/update-skill.yml
@@ -54,6 +54,7 @@ jobs:
       - name: Update Skill via Gemini
         env:
           GEMINI_API_KEY: ${{ secrets.GEMINI_API_KEY }}
+          GEMINI_MODEL: ${{ vars.GEMINI_MODEL }}
         run: |
           python .github/scripts/update_skill.py
           rm release_diff.patch