diff --git a/app/src/main/assets/pl-changelog.html b/app/src/main/assets/pl-changelog.html
index a7bfcaa6..40490597 100644
--- a/app/src/main/assets/pl-changelog.html
+++ b/app/src/main/assets/pl-changelog.html
@@ -1,6 +1,6 @@
-<h3>Wersja 4.11.2, 2022-02-05</h3>
+<h3>Wersja 4.11.3, 2022-02-21</h3>
 <ul>
-    <li>Mobidziennik: naprawiono brak nadawców w liście wiadomości.</li>
+    <li>Naprawiono odświeżanie planu lekcji po pobraniu wybranego tygodnia.</li>
 </ul>
 <br>
 <br>
diff --git a/app/src/main/cpp/szkolny-signing.cpp b/app/src/main/cpp/szkolny-signing.cpp
index 88369629..cb7abb6a 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] = {
-	0x66, 0xae, 0x85, 0x2a, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff  };
+	0x90, 0xe9, 0x2f, 0x20, 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 dcbea186..13c9c762 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 "$param1.MTIzNDU2Nzg5MDMIlcxGrq===.$param2".sha256()
+        return "$param1.MTIzNDU2Nzg5MDw/KY+My+===.$param2".sha256()
     }
 }
diff --git a/build.gradle b/build.gradle
index 668185ea..ad977b77 100644
--- a/build.gradle
+++ b/build.gradle
@@ -5,8 +5,8 @@ buildscript {
         kotlin_version = '1.5.30'
 
         release = [
-                versionName: "4.11.2",
-                versionCode: 4110299
+                versionName: "4.11.3",
+                versionCode: 4110399
         ]
 
         setup = [