diff --git a/common/build.gradle b/common/build.gradle
index 3ed16073..4eb5038e 100644
--- a/common/build.gradle
+++ b/common/build.gradle
@@ -30,7 +30,8 @@ android {
 
 dependencies {
 
-    implementation 'androidx.appcompat:appcompat:1.3.0'
+    implementation 'androidx.core:core:1.6.0'
+    // implementation 'androidx.appcompat:appcompat:1.3.0'
     implementation 'com.google.android.material:material:1.4.0'
     // implementation 'com.linkedin.dexmaker:dexmaker:2.28.3'
     testImplementation 'junit:junit:4.13.2'
diff --git a/mpmaster/build.gradle b/mpmaster/build.gradle
index 33c896d1..789b4131 100644
--- a/mpmaster/build.gradle
+++ b/mpmaster/build.gradle
@@ -97,10 +97,12 @@ android {
 
 dependencies {
 
-    implementation 'androidx.appcompat:appcompat:1.3.0'
+    implementation 'androidx.core:core:1.6.0'
+    implementation 'androidx.activity:activity:1.3.0'
     implementation 'com.google.android.material:material:1.4.0'
     implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
-    implementation 'androidx.annotation:annotation:+'
+    // implementation 'androidx.annotation:annotation:+'
+    implementation 'androidx.annotation:annotation:1.2.0'
     // implementation 'com.linkedin.dexmaker:dexmaker:2.28.3'
     implementation project(path: ':common')
     testImplementation 'junit:junit:4.13.2'