diff --git a/guice/annotation/pom.xml b/guice/annotation/pom.xml
index 748e104..81605c3 100644
--- a/guice/annotation/pom.xml
+++ b/guice/annotation/pom.xml
@@ -35,7 +35,6 @@
     <dependency>
       <groupId>com.google.guava</groupId>
       <artifactId>guava</artifactId>
-      <version>19.0</version>
     </dependency>
     <dependency>
       <groupId>com.google.inject</groupId>
diff --git a/guice/core/pom.xml b/guice/core/pom.xml
index 303378a..14885a4 100644
--- a/guice/core/pom.xml
+++ b/guice/core/pom.xml
@@ -35,7 +35,6 @@
     <dependency>
       <groupId>com.google.code.findbugs</groupId>
       <artifactId>jsr305</artifactId>
-      <version>3.0.1</version>
       <scope>provided</scope>
     </dependency>
   </dependencies>
diff --git a/guice/google-auth/pom.xml b/guice/google-auth/pom.xml
index b803f63..7d0e451 100644
--- a/guice/google-auth/pom.xml
+++ b/guice/google-auth/pom.xml
@@ -25,12 +25,10 @@
     <dependency>
       <groupId>com.google.auth</groupId>
       <artifactId>google-auth-library-credentials</artifactId>
-      <version>${google-auth-library-credentials.version}</version>
     </dependency>
     <dependency>
       <groupId>com.google.auth</groupId>
       <artifactId>google-auth-library-oauth2-http</artifactId>
-      <version>${google-auth-library-oauth2-http.version}</version>
     </dependency>
   </dependencies>
 </project>
diff --git a/guice/grpc-sink/pom.xml b/guice/grpc-sink/pom.xml
index f0922b8..5da5474 100644
--- a/guice/grpc-sink/pom.xml
+++ b/guice/grpc-sink/pom.xml
@@ -35,7 +35,6 @@
     <dependency>
       <groupId>com.google.auth</groupId>
       <artifactId>google-auth-library-credentials</artifactId>
-      <version>${google-auth-library-credentials.version}</version>
     </dependency>
     <dependency>
       <groupId>com.google.inject</groupId>
diff --git a/guice/v1/pom.xml b/guice/v1/pom.xml
index b9491c5..6ee2b00 100644
--- a/guice/v1/pom.xml
+++ b/guice/v1/pom.xml
@@ -30,7 +30,6 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-trace</artifactId>
-      <version>${google-cloud-trace.version}</version>
     </dependency>
     <dependency>
       <groupId>com.google.inject</groupId>
diff --git a/pom.xml b/pom.xml
index 3dad48d..a18f151 100644
--- a/pom.xml
+++ b/pom.xml
@@ -31,10 +31,6 @@
 
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <grpc.version>1.6.1</grpc.version>
-    <google-cloud-trace.version>0.24.0-alpha</google-cloud-trace.version>
-    <google-auth-library-credentials.version>0.8.0</google-auth-library-credentials.version>
-    <google-auth-library-oauth2-http.version>0.8.0</google-auth-library-oauth2-http.version>
   </properties>
 
   <modules>
@@ -67,13 +63,22 @@
     <dependencies>
       <dependency>
         <groupId>com.google.cloud</groupId>
-        <artifactId>google-cloud-trace</artifactId>
-        <version>${google-cloud-trace.version}</version>
+        <artifactId>google-cloud-bom</artifactId>
+        <version>0.32.0-alpha</version>
+        <type>pom</type>
+        <scope>import</scope>
       </dependency>
       <dependency>
-        <groupId>io.grpc</groupId>
-        <artifactId>grpc-context</artifactId>
-        <version>${grpc.version}</version>
+        <groupId>com.google.truth</groupId>
+        <artifactId>truth</artifactId>
+        <version>0.29</version>
+        <scope>test</scope>
+      </dependency>
+      <dependency>
+        <groupId>org.mockito</groupId>
+        <artifactId>mockito-core</artifactId>
+        <version>2.2.6</version>
+        <scope>test</scope>
       </dependency>
     </dependencies>
   </dependencyManagement>
diff --git a/samples/guice-scheduled-grpc/pom.xml b/samples/guice-scheduled-grpc/pom.xml
index 508d807..07bc346 100644
--- a/samples/guice-scheduled-grpc/pom.xml
+++ b/samples/guice-scheduled-grpc/pom.xml
@@ -20,7 +20,6 @@
     <dependency>
       <groupId>com.google.guava</groupId>
       <artifactId>guava</artifactId>
-      <version>19.0</version>
     </dependency>
 
     <dependency>
diff --git a/samples/guice-servlet-grpc/pom.xml b/samples/guice-servlet-grpc/pom.xml
index 255dc68..4025d13 100644
--- a/samples/guice-servlet-grpc/pom.xml
+++ b/samples/guice-servlet-grpc/pom.xml
@@ -20,7 +20,6 @@
     <dependency>
       <groupId>com.google.guava</groupId>
       <artifactId>guava</artifactId>
-      <version>19.0</version>
     </dependency>
 
     <dependency>
diff --git a/sdk/core-testing/pom.xml b/sdk/core-testing/pom.xml
index ab2daf7..156c1fb 100644
--- a/sdk/core-testing/pom.xml
+++ b/sdk/core-testing/pom.xml
@@ -25,13 +25,11 @@
     <dependency>
       <groupId>com.google.truth</groupId>
       <artifactId>truth</artifactId>
-      <version>0.29</version>
       <scope>test</scope>
     </dependency>
     <dependency>
       <groupId>org.mockito</groupId>
       <artifactId>mockito-core</artifactId>
-      <version>2.2.6</version>
       <scope>test</scope>
     </dependency>
   </dependencies>
diff --git a/sdk/core/pom.xml b/sdk/core/pom.xml
index 9717ee4..b3b6e4d 100644
--- a/sdk/core/pom.xml
+++ b/sdk/core/pom.xml
@@ -20,24 +20,20 @@
     <dependency>
       <groupId>com.google.guava</groupId>
       <artifactId>guava</artifactId>
-      <version>19.0</version>
     </dependency>
     <dependency>
       <groupId>com.google.code.findbugs</groupId>
       <artifactId>jsr305</artifactId>
-      <version>3.0.1</version>
       <scope>provided</scope>
     </dependency>
     <dependency>
       <groupId>com.google.truth</groupId>
       <artifactId>truth</artifactId>
-      <version>0.29</version>
       <scope>test</scope>
     </dependency>
     <dependency>
       <groupId>org.mockito</groupId>
       <artifactId>mockito-core</artifactId>
-      <version>2.2.6</version>
       <scope>test</scope>
     </dependency>
   </dependencies>
diff --git a/sdk/implementation/pom.xml b/sdk/implementation/pom.xml
index 5a6574a..ad80da9 100644
--- a/sdk/implementation/pom.xml
+++ b/sdk/implementation/pom.xml
@@ -25,7 +25,6 @@
     <dependency>
       <groupId>com.google.guava</groupId>
       <artifactId>guava</artifactId>
-      <version>19.0</version>
     </dependency>
     <dependency>
       <groupId>io.grpc</groupId>
@@ -34,7 +33,6 @@
     <dependency>
       <groupId>com.google.code.findbugs</groupId>
       <artifactId>jsr305</artifactId>
-      <version>3.0.1</version>
       <scope>provided</scope>
     </dependency>
     <dependency>
@@ -46,7 +44,6 @@
     <dependency>
       <groupId>com.google.truth</groupId>
       <artifactId>truth</artifactId>
-      <version>0.29</version>
       <scope>test</scope>
     </dependency>
     <dependency>
diff --git a/sdk/java-timestamp/pom.xml b/sdk/java-timestamp/pom.xml
index 07c45cb..3897afb 100644
--- a/sdk/java-timestamp/pom.xml
+++ b/sdk/java-timestamp/pom.xml
@@ -25,7 +25,6 @@
     <dependency>
       <groupId>com.google.guava</groupId>
       <artifactId>guava</artifactId>
-      <version>19.0</version>
     </dependency>
   </dependencies>
 </project>
diff --git a/sdk/joda-timestamp/pom.xml b/sdk/joda-timestamp/pom.xml
index 5afd995..c89c2a5 100644
--- a/sdk/joda-timestamp/pom.xml
+++ b/sdk/joda-timestamp/pom.xml
@@ -25,12 +25,10 @@
     <dependency>
       <groupId>com.google.guava</groupId>
       <artifactId>guava</artifactId>
-      <version>19.0</version>
     </dependency>
     <dependency>
       <groupId>joda-time</groupId>
       <artifactId>joda-time</artifactId>
-      <version>2.9.4</version>
     </dependency>
   </dependencies>
 </project>
diff --git a/sdk/service/pom.xml b/sdk/service/pom.xml
index e5e00d2..09fb729 100644
--- a/sdk/service/pom.xml
+++ b/sdk/service/pom.xml
@@ -25,7 +25,6 @@
     <dependency>
       <groupId>com.google.truth</groupId>
       <artifactId>truth</artifactId>
-      <version>0.29</version>
       <scope>test</scope>
     </dependency>
   </dependencies>
diff --git a/services/appengine-standard-service/pom.xml b/services/appengine-standard-service/pom.xml
index a127ade..74a591f 100644
--- a/services/appengine-standard-service/pom.xml
+++ b/services/appengine-standard-service/pom.xml
@@ -23,8 +23,7 @@
     <dependency>
       <groupId>${project.groupId}</groupId>
       <artifactId>core</artifactId>
-      <version>0.6.0-SNAPSHOT</version>
-      <type>jar</type>
+      <version>${project.version}</version>
     </dependency>
     <dependency>
       <groupId>${project.groupId}</groupId>
@@ -67,13 +66,11 @@
     <dependency>
       <groupId>com.google.truth</groupId>
       <artifactId>truth</artifactId>
-      <version>0.30</version>
       <scope>test</scope>
     </dependency>
     <dependency>
       <groupId>org.mockito</groupId>
       <artifactId>mockito-core</artifactId>
-      <version>2.2.9</version>
       <scope>test</scope>
     </dependency>
   </dependencies>
diff --git a/services/trace-grpc-api-service/pom.xml b/services/trace-grpc-api-service/pom.xml
index b45ab00..efafcac 100644
--- a/services/trace-grpc-api-service/pom.xml
+++ b/services/trace-grpc-api-service/pom.xml
@@ -49,7 +49,6 @@
     <dependency>
       <groupId>com.google.auth</groupId>
       <artifactId>google-auth-library-credentials</artifactId>
-      <version>${google-auth-library-credentials.version}</version>
     </dependency>
   </dependencies>
 </project>
diff --git a/sinks/v1/grpc-consumer/pom.xml b/sinks/v1/grpc-consumer/pom.xml
index b281bea..13f77d5 100644
--- a/sinks/v1/grpc-consumer/pom.xml
+++ b/sinks/v1/grpc-consumer/pom.xml
@@ -24,12 +24,10 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-trace</artifactId>
-      <version>${google-cloud-trace.version}</version>
     </dependency>
     <dependency>
       <groupId>com.google.auth</groupId>
       <artifactId>google-auth-library-credentials</artifactId>
-      <version>${google-auth-library-credentials.version}</version>
     </dependency>
   </dependencies>
 </project>
diff --git a/sinks/v1/grpc-consumer/src/main/java/com/google/cloud/trace/grpc/v1/GrpcTraceConsumer.java b/sinks/v1/grpc-consumer/src/main/java/com/google/cloud/trace/grpc/v1/GrpcTraceConsumer.java
index 23fda97..76424fa 100644
--- a/sinks/v1/grpc-consumer/src/main/java/com/google/cloud/trace/grpc/v1/GrpcTraceConsumer.java
+++ b/sinks/v1/grpc-consumer/src/main/java/com/google/cloud/trace/grpc/v1/GrpcTraceConsumer.java
@@ -63,23 +63,23 @@ public void receive(Traces traces) {
    * @param apiHost a string containing the API host name.
    * @param credentials a credentials used to authenticate API calls.
    */
-  @Deprecated
-  public static GrpcTraceConsumer create(String apiHost, Credentials credentials)
-      throws IOException {
-    TraceServiceSettings traceServiceSettings =
-        TraceServiceSettings.newBuilder()
-            .setCredentialsProvider(FixedCredentialsProvider.create(credentials))
-            .setTransportProvider(
-                TraceServiceSettings.defaultGrpcTransportProviderBuilder()
-                    .setChannelProvider(
-                        TraceServiceSettings.defaultGrpcChannelProviderBuilder()
-                            .setEndpoint(apiHost)
-                            .build())
-                    .build())
-            .build();
-
-    return new GrpcTraceConsumer(TraceServiceClient.create(traceServiceSettings));
-  }
+  //@Deprecated
+//  public static GrpcTraceConsumer create(String apiHost, Credentials credentials)
+//      throws IOException {
+//    TraceServiceSettings traceServiceSettings =
+//        TraceServiceSettings.newBuilder()
+//            .setCredentialsProvider(FixedCredentialsProvider.create(credentials))
+//            .setTransportProvider(
+//                TraceServiceSettings.defaultGrpcTransportProviderBuilder()
+//                    .setChannelProvider(
+//                        TraceServiceSettings.defaultGrpcChannelProviderBuilder()
+//                            .setEndpoint(apiHost)
+//                            .build())
+//                    .build())
+//            .build();
+//
+//    return new GrpcTraceConsumer(TraceServiceClient.create(traceServiceSettings));
+//  }
 
   /**
    * Creates a trace consumer that sends trace messages to the Stackdriver Trace API via gRPC.
diff --git a/sinks/v1/http-consumer/pom.xml b/sinks/v1/http-consumer/pom.xml
index dc3dccf..4a7432f 100644
--- a/sinks/v1/http-consumer/pom.xml
+++ b/sinks/v1/http-consumer/pom.xml
@@ -24,27 +24,22 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-trace</artifactId>
-      <version>${google-cloud-trace.version}</version>
     </dependency>
     <dependency>
       <groupId>com.google.auth</groupId>
       <artifactId>google-auth-library-oauth2-http</artifactId>
-      <version>${google-auth-library-oauth2-http.version}</version>
     </dependency>
     <dependency>
       <groupId>com.google.guava</groupId>
       <artifactId>guava</artifactId>
-      <version>19.0</version>
     </dependency>
     <dependency>
       <groupId>com.google.protobuf</groupId>
       <artifactId>protobuf-java</artifactId>
-      <version>3.1.0</version>
     </dependency>
     <dependency>
       <groupId>com.google.protobuf</groupId>
       <artifactId>protobuf-java-util</artifactId>
-      <version>3.1.0</version>
     </dependency>
   </dependencies>
 </project>
diff --git a/sinks/v1/sink/pom.xml b/sinks/v1/sink/pom.xml
index 2d15406..a280e1c 100644
--- a/sinks/v1/sink/pom.xml
+++ b/sinks/v1/sink/pom.xml
@@ -25,28 +25,23 @@
     <dependency>
       <groupId>com.google.guava</groupId>
       <artifactId>guava</artifactId>
-      <version>19.0</version>
     </dependency>
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-trace</artifactId>
-      <version>${google-cloud-trace.version}</version>
     </dependency>
     <dependency>
       <groupId>com.google.protobuf</groupId>
       <artifactId>protobuf-java</artifactId>
-      <version>3.1.0</version>
     </dependency>
     <dependency>
       <groupId>com.google.truth</groupId>
       <artifactId>truth</artifactId>
-      <version>0.29</version>
       <scope>test</scope>
     </dependency>
     <dependency>
       <groupId>org.mockito</groupId>
       <artifactId>mockito-core</artifactId>
-      <version>2.2.6</version>
       <scope>test</scope>
     </dependency>
     <dependency>