diff --git a/app/build.gradle b/app/build.gradle
index 9de61d6..6301479 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -10,17 +10,30 @@ android {
         versionName rootProject.ext.verName
 
         multiDexEnabled false
+
+        signingConfigs {
+            config {
+                if (project.hasProperty('androidStoreFile') && !androidStoreFile.isEmpty()) {
+                    storeFile = file(androidStoreFile)
+                    storePassword = androidStorePassword
+                    keyAlias = androidKeyAlias
+                    keyPassword = androidKeyPassword
+                }
+            }
+        }
     }
     buildTypes {
         debug {
             debuggable true
             minifyEnabled false
             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+            signingConfig = signingConfigs.config.storeFile == null ? signingConfigs.debug : signingConfigs.config
         }
         release {
             debuggable false
             minifyEnabled false
             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+            signingConfig = signingConfigs.config.storeFile == null ? signingConfigs.debug : signingConfigs.config
         }
     }
     lintOptions {
diff --git a/build.gradle b/build.gradle
index 96c930a..4c88de4 100644
--- a/build.gradle
+++ b/build.gradle
@@ -8,7 +8,7 @@ buildscript {
         maven { url "https://jitpack.io" }
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:7.0.0-beta03'
+        classpath 'com.android.tools.build:gradle:7.0.0-beta04'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.4.32"
     }
 }
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index fc0e207..10d1e63 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Thu Apr 08 14:13:08 CST 2021
+#Thu Jun 17 15:35:10 CST 2021
 distributionBase=GRADLE_USER_HOME
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.0-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.1-bin.zip
 distributionPath=wrapper/dists
 zipStorePath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME