diff --git a/changelog.txt b/changelog.txt
index 306f217..2f9c890 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -1,6 +1,6 @@
 This change log is written to find out the changes that have been made by Pandora, and the source code still refers to TTMediaBot.
 5/17/2025
-rollback to TTSDk5.8
+rollback to TTSDk5.12 due 5.8 is gone.
 5/14/2025
 Added entry for scheduler command on readme.md
 Fixed file caching:
diff --git a/tools/ttsdk_downloader.py b/tools/ttsdk_downloader.py
index 652fb78..e4b9c36 100644
--- a/tools/ttsdk_downloader.py
+++ b/tools/ttsdk_downloader.py
@@ -45,9 +45,9 @@ def download() -> None:
     headers = {'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.3'}
     r = requests.get(url, headers=headers)
     page = bs4.BeautifulSoup(r.text, features="html.parser")
-    # The last tested version series is v5.8x
+    # The last tested version series is v5.12x
     versions = page.find_all("li")
-    version = [i for i in versions if "5.8" in i.text][-1].a.get("href")[0:-1]
+    version = [i for i in versions if "5.12" in i.text][-1].a.get("href")[0:-1]
     download_url = (
         url
         + "/"