diff --git a/libsignal/build.gradle b/libsignal/build.gradle
index 46788a95a..7b45a206c 100644
--- a/libsignal/build.gradle
+++ b/libsignal/build.gradle
@@ -44,22 +44,15 @@ android {
 }
 
 dependencies {
-    implementation "androidx.annotation:annotation:1.1.0"
-
+    implementation "androidx.annotation:annotation:1.2.0"
     implementation "com.google.protobuf:protobuf-java:$protobufVersion"
-    implementation "com.googlecode.libphonenumber:libphonenumber:8.10.7"
     implementation "com.fasterxml.jackson.core:jackson-databind:$jacksonDatabindVersion"
-
     implementation "org.whispersystems:curve25519-java:$curve25519Version"
     implementation "com.squareup.okhttp3:okhttp:$okhttpVersion"
-    implementation "org.threeten:threetenbp:1.3.6"
-
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlinVersion"
     implementation "org.jetbrains.kotlin:kotlin-reflect:$kotlinVersion"
-
     implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:1.3.9"
     implementation "nl.komponents.kovenant:kovenant:$kovenantVersion"
-
     testImplementation "junit:junit:3.8.2"
     testImplementation "org.assertj:assertj-core:1.7.1"
     testImplementation "org.conscrypt:conscrypt-openjdk-uber:2.0.0"