diff --git a/google-cloud-bom/pom.xml b/google-cloud-bom/pom.xml
index 585038b1954a..2f72fb9d6e76 100644
--- a/google-cloud-bom/pom.xml
+++ b/google-cloud-bom/pom.xml
@@ -168,7 +168,7 @@
       <dependency>
         <groupId>com.google.api</groupId>
         <artifactId>gax-bom</artifactId>
-        <version>1.35.1</version>
+        <version>1.37.0</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>
diff --git a/google-cloud-clients/google-cloud-spanner/pom.xml b/google-cloud-clients/google-cloud-spanner/pom.xml
index 6ba733b0d6c6..f5d89d02698e 100644
--- a/google-cloud-clients/google-cloud-spanner/pom.xml
+++ b/google-cloud-clients/google-cloud-spanner/pom.xml
@@ -116,12 +116,6 @@
     <dependency>
       <groupId>io.grpc</groupId>
       <artifactId>grpc-netty-shaded</artifactId>
-      <exclusions>
-        <exclusion>
-          <groupId>io.opencensus</groupId>
-          <artifactId>opencensus-api</artifactId>
-        </exclusion>
-      </exclusions>
     </dependency>
     <dependency>
       <groupId>io.grpc</groupId>
diff --git a/google-cloud-clients/pom.xml b/google-cloud-clients/pom.xml
index c01bdbea913f..7e05ee2fae17 100644
--- a/google-cloud-clients/pom.xml
+++ b/google-cloud-clients/pom.xml
@@ -154,16 +154,17 @@
     <site.installationModule>google-cloud-clients</site.installationModule>
     <bom.version>0.77.1-alpha-SNAPSHOT</bom.version><!-- {x-version-update:google-cloud-bom:current} -->
     <api-client.version>1.27.0</api-client.version>
-    <gax.version>1.35.1</gax.version>
+    <!-- make sure to keep gax version in sync with google-cloud-bom -->
+    <gax.version>1.37.0</gax.version>
     <api.common.java.version>1.7.0</api.common.java.version>
     <google.auth.version>0.12.0</google.auth.version>
-    <grpc.version>1.16.1</grpc.version>
-    <nettyssl.version>2.0.7.Final</nettyssl.version>
+    <grpc.version>1.17.1</grpc.version>
     <guava.version>26.0-android</guava.version>
     <http-client.version>1.27.0</http-client.version>
     <oauth-client.version>1.27.0</oauth-client.version>
     <protobuf.version>3.6.1</protobuf.version>
-    <opencensus.version>0.15.0</opencensus.version>
+    <!-- make sure to keep opencensus version in sync with grpc -->
+    <opencensus.version>0.17.0</opencensus.version>
     <!-- test dependency versions -->
     <easymock.version>3.4</easymock.version>
     <objenesis.version>2.6</objenesis.version>