diff --git a/multisrc/src/main/java/eu/kanade/tachiyomi/multisrc/libgroup/LibGenerator.kt b/multisrc/src/main/java/eu/kanade/tachiyomi/multisrc/libgroup/LibGenerator.kt
index ec7296dbf..727447bc9 100644
--- a/multisrc/src/main/java/eu/kanade/tachiyomi/multisrc/libgroup/LibGenerator.kt
+++ b/multisrc/src/main/java/eu/kanade/tachiyomi/multisrc/libgroup/LibGenerator.kt
@@ -9,7 +9,7 @@ class LibGenerator : ThemeSourceGenerator {
 
     override val themeClass = "LibGroup"
 
-    override val baseVersionCode: Int = 11
+    override val baseVersionCode: Int = 12
 
     override val sources = listOf(
         SingleLang("MangaLib", "https://mangalib.me", "ru", overrideVersionCode = 74),
diff --git a/multisrc/src/main/java/eu/kanade/tachiyomi/multisrc/libgroup/LibGroup.kt b/multisrc/src/main/java/eu/kanade/tachiyomi/multisrc/libgroup/LibGroup.kt
index 319cbb50b..d1364f43d 100644
--- a/multisrc/src/main/java/eu/kanade/tachiyomi/multisrc/libgroup/LibGroup.kt
+++ b/multisrc/src/main/java/eu/kanade/tachiyomi/multisrc/libgroup/LibGroup.kt
@@ -463,7 +463,7 @@ abstract class LibGroup(
 
     private fun checkImage(url: String): Boolean {
         val response = client.newCall(Request.Builder().url(url).head().headers(headers).build()).execute()
-        return response.isSuccessful && (response.header("content-length", "0")?.toInt()!! > 320)
+        return response.isSuccessful && (response.header("content-length", "0")?.toInt()!! > 600)
     }
 
     override fun fetchImageUrl(page: Page): Observable<String> {