diff --git a/app/src/main/assets/pl-changelog.html b/app/src/main/assets/pl-changelog.html
index af4aaca4..173d3877 100644
--- a/app/src/main/assets/pl-changelog.html
+++ b/app/src/main/assets/pl-changelog.html
@@ -1,8 +1,6 @@
-<h3>Wersja 4.13.6, 2023-03-24</h3>
+<h3>Wersja 4.13.7, 2024-07-08</h3>
 <ul>
-    <li>Naprawiono pobieranie załączników na Androidzie 13 i nowszym.</li>
-    <li>Dodano opcję odświeżenia planu lekcji na wybrany tydzień.</li>
-    <li>Usunięto błędy logowania. @BxOxSxS</li>
+    <li>Dodano opcję uruchomienia aplikacji bez logowania.</li>
 </ul>
 <br>
 <br>
diff --git a/app/src/main/cpp/szkolny-signing.cpp b/app/src/main/cpp/szkolny-signing.cpp
index 9ae8f745..089e9025 100644
--- a/app/src/main/cpp/szkolny-signing.cpp
+++ b/app/src/main/cpp/szkolny-signing.cpp
@@ -9,7 +9,7 @@
 
 /*secret password - removed for source code publication*/
 static toys AES_IV[16] = {
-	0x6d, 0xa5, 0x32, 0xe6, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff  };
+	0x0e, 0x87, 0x6d, 0xaa, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff  };
 
 unsigned char *agony(unsigned int laugh, unsigned char *box, unsigned char *heat);
 
diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/data/api/szkolny/interceptor/Signing.kt b/app/src/main/java/pl/szczodrzynski/edziennik/data/api/szkolny/interceptor/Signing.kt
index f520ac62..f1c69abd 100644
--- a/app/src/main/java/pl/szczodrzynski/edziennik/data/api/szkolny/interceptor/Signing.kt
+++ b/app/src/main/java/pl/szczodrzynski/edziennik/data/api/szkolny/interceptor/Signing.kt
@@ -46,6 +46,6 @@ object Signing {
 
     /*fun provideKey(param1: String, param2: Long): ByteArray {*/
     fun pleaseStopRightNow(param1: String, param2: Long): ByteArray {
-        return "$param1.MTIzNDU2Nzg5MD01uMP7oW===.$param2".sha256()
+        return "$param1.MTIzNDU2Nzg5MD0WAYwfGc===.$param2".sha256()
     }
 }
diff --git a/build.gradle b/build.gradle
index 64d1f3c8..89b20995 100644
--- a/build.gradle
+++ b/build.gradle
@@ -5,8 +5,8 @@ buildscript {
         kotlin_version = '1.6.10'
 
         release = [
-                versionName: "4.13.6",
-                versionCode: 4130699
+                versionName: "4.13.7",
+                versionCode: 4130799
         ]
 
         setup = [