diff --git a/build.gradle b/build.gradle
index 69dfc08..4c68f2e 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,6 +1,6 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 buildscript {
-    ext.kotlin_version = '1.9.22'
+    ext.kotlin_version = '1.7.20'
     repositories {
         google()
         mavenCentral()
diff --git a/connector/build.gradle b/connector/build.gradle
index d13cd87..b6cbc0c 100644
--- a/connector/build.gradle
+++ b/connector/build.gradle
@@ -7,7 +7,7 @@ plugins {
 }
 
 kotlin {
-    jvmToolchain(17)
+    jvmToolchain(8)
 }
 
 android {