diff --git a/app/src/main/assets/pl-changelog.html b/app/src/main/assets/pl-changelog.html
index a53fcb2c..a7bfcaa6 100644
--- a/app/src/main/assets/pl-changelog.html
+++ b/app/src/main/assets/pl-changelog.html
@@ -1,6 +1,6 @@
-<h3>Wersja 4.11.1, 2022-01-14</h3>
+<h3>Wersja 4.11.2, 2022-02-05</h3>
 <ul>
-    <li>Poprawiono działanie planu lekcji. @BxOxSxS</li>
+    <li>Mobidziennik: naprawiono brak nadawców w liście wiadomości.</li>
 </ul>
 <br>
 <br>
diff --git a/app/src/main/cpp/szkolny-signing.cpp b/app/src/main/cpp/szkolny-signing.cpp
index 659ec9c0..88369629 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] = {
-	0x9a, 0x00, 0xd6, 0xc9, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff  };
+	0x66, 0xae, 0x85, 0x2a, 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 bdc6d2f7..dcbea186 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 "$param1.MTIzNDU2Nzg5MD+gUJU5oz===.$param2".sha256()
+        return "$param1.MTIzNDU2Nzg5MDMIlcxGrq===.$param2".sha256()
     }
 }
diff --git a/build.gradle b/build.gradle
index 8f145c29..668185ea 100644
--- a/build.gradle
+++ b/build.gradle
@@ -5,8 +5,8 @@ buildscript {
         kotlin_version = '1.5.30'
 
         release = [
-                versionName: "4.11.1",
-                versionCode: 4110199
+                versionName: "4.11.2",
+                versionCode: 4110299
         ]
 
         setup = [