diff --git a/app/build.gradle b/app/build.gradle
index 13180352..b6607382 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -13,8 +13,8 @@ android {
         targetSdkVersion target_sdk_version
         minSdkVersion min_sdk_version
 
-        versionCode 345
-        versionName "3.4.5"
+        versionCode 346
+        versionName "3.4.6"
         applicationId "jp.juggler.subwaytooter"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
 
@@ -85,8 +85,8 @@ dependencies {
     implementation "com.google.android.material:material:$androidx_version"
 
     // https://firebase.google.com/support/release-notes/android
-    implementation "com.google.firebase:firebase-core:16.0.7"
-    implementation "com.google.firebase:firebase-messaging:17.4.0"
+    implementation "com.google.firebase:firebase-core:16.0.8"
+    implementation "com.google.firebase:firebase-messaging:17.5.0"
 
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
     implementation "org.jetbrains.kotlin:kotlin-reflect:$kotlin_version"
@@ -114,7 +114,7 @@ dependencies {
     implementation 'com.github.bumptech.glide:okhttp3-integration:4.9.0'
     implementation 'com.github.bumptech.glide:annotations:4.9.0'
     // kotlin では annotationProcessor の代わりに kapt を使う
-    kapt 'androidx.annotation:annotation:1.0.1'
+    kapt 'androidx.annotation:annotation:1.0.2'
     kapt 'com.github.bumptech.glide:compiler:4.9.0'
 
     implementation "org.conscrypt:conscrypt-android:1.3.0"