diff --git a/mobile/.idea/deploymentTargetDropDown.xml b/mobile/.idea/deploymentTargetDropDown.xml
index 7a7d27b..5b2ee27 100644
--- a/mobile/.idea/deploymentTargetDropDown.xml
+++ b/mobile/.idea/deploymentTargetDropDown.xml
@@ -2,7 +2,7 @@
 <project version="4">
   <component name="deploymentTargetDropDown">
     <value>
-      <entry key="Run">
+      <entry key="app">
         <State>
           <targetSelectedWithDropDown>
             <Target>
@@ -10,12 +10,12 @@
               <deviceKey>
                 <Key>
                   <type value="VIRTUAL_DEVICE_PATH" />
-                  <value value="$USER_HOME$/.android/avd/Pixel_3a_API_34_extension_level_7_x86_64.avd" />
+                  <value value="$USER_HOME$/.var/app/com.google.AndroidStudio/config/.android/avd/Pixel_3a_API_34_extension_level_7_x86_64.avd" />
                 </Key>
               </deviceKey>
             </Target>
           </targetSelectedWithDropDown>
-          <timeTargetWasSelectedWithDropDown value="2024-02-16T14:53:01.463073218Z" />
+          <timeTargetWasSelectedWithDropDown value="2024-02-21T21:45:22.107764718Z" />
         </State>
       </entry>
     </value>
diff --git a/mobile/app/build.gradle.kts b/mobile/app/build.gradle.kts
index 7b0d948..eadabe3 100644
--- a/mobile/app/build.gradle.kts
+++ b/mobile/app/build.gradle.kts
@@ -12,7 +12,7 @@ android {
         minSdk = 28
         targetSdk = 34
         versionCode = 1
-        versionName = "1.0"
+        versionName = "1.0.1"
     }
 
     buildTypes {
diff --git a/mobile/app/src/main/java/com/odweta/solon/Util.kt b/mobile/app/src/main/java/com/odweta/solon/Util.kt
index 138e5ad..cecda9e 100644
--- a/mobile/app/src/main/java/com/odweta/solon/Util.kt
+++ b/mobile/app/src/main/java/com/odweta/solon/Util.kt
@@ -133,6 +133,10 @@ class Util {
 
             for (mark in marks) {
                 len += 1
+                if (mark.grade !in "0123456789") {
+                    marks.remove(mark)
+                    continue
+                }
                 sum += (mark.grade.toFloat() * mark.weight.toFloat())
             }
 
diff --git a/mobile/build.gradle.kts b/mobile/build.gradle.kts
index a6711ae..53f4a67 100644
--- a/mobile/build.gradle.kts
+++ b/mobile/build.gradle.kts
@@ -1,5 +1,5 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 plugins {
-    id("com.android.application") version "8.2.1" apply false
+    id("com.android.application") version "8.2.2" apply false
     id("org.jetbrains.kotlin.android") version "1.9.22" apply false
 }
\ No newline at end of file
diff --git a/release/solon.apk b/release/solon.apk
index 2635910..a116062 100644
Binary files a/release/solon.apk and b/release/solon.apk differ