diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3b778d7c..346a2298 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,4 @@
-# 3.10.0
+# 3.9.1
 
 # 3.9.0
   - NEW
diff --git a/project.yml b/project.yml
index 1c98ba46..bebef502 100644
--- a/project.yml
+++ b/project.yml
@@ -104,7 +104,7 @@ targets:
         com.apple.developer.in-app-payments: [merchant.org.kiwix.apple] # this line is removed for macOS FTP
     settings:
       base:
-        MARKETING_VERSION: "3.10.0"
+        MARKETING_VERSION: "3.9.1"
         PRODUCT_BUNDLE_IDENTIFIER: self.Kiwix
         INFOPLIST_KEY_CFBundleDisplayName: Kiwix
         INFOPLIST_FILE: Support/Info.plist