diff --git a/build.gradle b/build.gradle
index 970b4c4c..bc3fcfdd 100644
--- a/build.gradle
+++ b/build.gradle
@@ -6,7 +6,7 @@ buildscript {
 
     dependencies {
         classpath 'com.android.tools.build:gradle:7.0.4'
-        classpath 'org.jetbrains.kotlin:kotlin-gradle-plugin:1.6.10'
+        classpath 'org.jetbrains.kotlin:kotlin-gradle-plugin:1.5.31'
     }
 }
 
@@ -125,7 +125,7 @@ repositories {
 dependencies {
 
     // Core
-    implementation 'org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.6.10'
+    implementation 'org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.5.31'
     implementation 'androidx.core:core-ktx:1.7.0'
     implementation 'androidx.appcompat:appcompat:1.4.0'
     implementation 'androidx.appcompat:appcompat-resources:1.4.0'