diff --git a/app/build.gradle b/app/build.gradle
index 01a4f10..f14e585 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -39,7 +39,7 @@ dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
 
-    implementation 'androidx.appcompat:appcompat:1.2.0'
+    implementation 'androidx.appcompat:appcompat:1.3.1'
     implementation 'androidx.core:core-ktx:1.3.2'
     implementation 'com.google.android.material:material:1.4.0-alpha01'
     implementation "androidx.fragment:fragment-ktx:1.3.0"
diff --git a/livedata-validation/build.gradle b/livedata-validation/build.gradle
index daa1f0f..93c19b5 100644
--- a/livedata-validation/build.gradle
+++ b/livedata-validation/build.gradle
@@ -60,7 +60,7 @@ dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
 
-    implementation 'androidx.appcompat:appcompat:1.2.0'
+    implementation 'androidx.appcompat:appcompat:1.3.1'
     implementation 'androidx.core:core-ktx:1.3.2'
     implementation 'com.google.android.material:material:1.4.0-alpha01'
     implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.3.0'