diff --git a/src/en/kissmanga/build.gradle b/src/en/kissmanga/build.gradle
index 49378e6c3..be167f2db 100644
--- a/src/en/kissmanga/build.gradle
+++ b/src/en/kissmanga/build.gradle
@@ -5,7 +5,7 @@ ext {
     appName = 'Tachiyomi: Kissmanga'
     pkgNameSuffix = 'en.kissmanga'
     extClass = '.Kissmanga'
-    extVersionCode = 11
+    extVersionCode = 12
     libVersion = '1.2'
 }
 
diff --git a/src/en/kissmanga/src/eu/kanade/tachiyomi/extension/en/kissmanga/Kissmanga.kt b/src/en/kissmanga/src/eu/kanade/tachiyomi/extension/en/kissmanga/Kissmanga.kt
index ea3284b7e..e6d7f109e 100644
--- a/src/en/kissmanga/src/eu/kanade/tachiyomi/extension/en/kissmanga/Kissmanga.kt
+++ b/src/en/kissmanga/src/eu/kanade/tachiyomi/extension/en/kissmanga/Kissmanga.kt
@@ -28,7 +28,7 @@ class Kissmanga : ParsedHttpSource() {
 
     override fun headersBuilder(): Headers.Builder {
         return Headers.Builder()
-                .add("User-Agent", "Mozilla/5.0 (Windows NT 10.0; WOW64) Gecko/20100101 Firefox/60")
+                .add("User-Agent", "Mozilla/5.0 (Windows NT 10.0; WOW64) Gecko/20100101 Firefox/74.0")
     }
 
     override fun popularMangaSelector() = "table.listing tr:gt(1)"