diff --git a/app/build.gradle b/app/build.gradle
index 8406c0c..7f8a1fa 100755
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -45,7 +45,7 @@ dependencies {
     implementation 'androidx.appcompat:appcompat:1.0.0'
     implementation 'com.android.support:design:29.0.0'
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
-    implementation "androidx.core:core-ktx:+"
+    implementation "androidx.core:core-ktx:1.6.0"
     implementation 'com.airbnb.android:lottie:3.7.0'
 
     implementation "org.koin:koin-android:2.0.0"
diff --git a/fudi-nfc/build.gradle b/fudi-nfc/build.gradle
index 21b1675..45b37be 100755
--- a/fudi-nfc/build.gradle
+++ b/fudi-nfc/build.gradle
@@ -46,7 +46,7 @@ android {
 dependencies {
     implementation 'androidx.appcompat:appcompat:1.0.0'
 //    implementation 'com.intellij:annotations:12.0'
-    implementation "androidx.core:core-ktx:+"
+    implementation "androidx.core:core-ktx:1.6.0"
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
 }