diff --git a/java/com/android/incallui/InCallActivity.java b/java/com/android/incallui/InCallActivity.java
index 9db42d7..fa4a06e 100644
--- a/java/com/android/incallui/InCallActivity.java
+++ b/java/com/android/incallui/InCallActivity.java
@@ -96,12 +96,12 @@
 import com.android.incallui.video.protocol.VideoCallScreen;
 import com.android.incallui.video.protocol.VideoCallScreenDelegate;
 import com.android.incallui.video.protocol.VideoCallScreenDelegateFactory;
-import com.google.common.base.Optional;
 import com.google.common.util.concurrent.ListenableFuture;
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Optional;
 
 /** Version of {@link InCallActivity} that shows the new UI */
 public class InCallActivity extends TransactionSafeFragmentActivity
@@ -124,7 +124,7 @@
   private static final int DIALPAD_REQUEST_SHOW = 2;
   private static final int DIALPAD_REQUEST_HIDE = 3;
 
-  private static Optional<Integer> audioRouteForTesting = Optional.absent();
+  private static Optional<Integer> audioRouteForTesting = Optional.empty();
 
   private SelectPhoneAccountListener selectPhoneAccountListener;
   private UiListener<Result> preferredAccountWorkerResultListener;
diff --git a/java/com/android/incallui/speakeasy/SpeakEasyCallManager.java b/java/com/android/incallui/speakeasy/SpeakEasyCallManager.java
index f2916f4..55905ce 100644
--- a/java/com/android/incallui/speakeasy/SpeakEasyCallManager.java
+++ b/java/com/android/incallui/speakeasy/SpeakEasyCallManager.java
@@ -20,8 +20,8 @@
 import android.support.annotation.NonNull;
 import android.support.v4.app.Fragment;
 import com.android.incallui.call.DialerCall;
-import com.google.common.base.Optional;
 import com.google.common.util.concurrent.ListenableFuture;
+import java.util.Optional;
 
 /** Provides operations necessary to SpeakEasy. */
 public interface SpeakEasyCallManager {
diff --git a/java/com/android/incallui/speakeasy/SpeakEasyCallManagerStub.java b/java/com/android/incallui/speakeasy/SpeakEasyCallManagerStub.java
index da5e88a..4eebc80 100644
--- a/java/com/android/incallui/speakeasy/SpeakEasyCallManagerStub.java
+++ b/java/com/android/incallui/speakeasy/SpeakEasyCallManagerStub.java
@@ -21,9 +21,9 @@
 import android.support.annotation.Nullable;
 import android.support.v4.app.Fragment;
 import com.android.incallui.call.DialerCall;
-import com.google.common.base.Optional;
 import com.google.common.util.concurrent.Futures;
 import com.google.common.util.concurrent.ListenableFuture;
+import java.util.Optional;
 import javax.inject.Inject;
 
 /** Default implementation of SpeakEasyCallManager. */
@@ -36,7 +36,7 @@
   @Override
   @Nullable
   public Optional<Fragment> getSpeakEasyFragment(DialerCall call) {
-    return Optional.absent();
+    return Optional.empty();
   }
 
   /** Always inert in the stub. */