diff --git a/samples/install-without-bom/pom.xml b/samples/install-without-bom/pom.xml
index ae01f8a0ee..36f6de618f 100644
--- a/samples/install-without-bom/pom.xml
+++ b/samples/install-without-bom/pom.xml
@@ -22,7 +22,7 @@
     <maven.compiler.source>1.8</maven.compiler.source>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <opencensus.version>0.28.3</opencensus.version>
-    <trace.version>1.3.4</trace.version>
+    <trace.version>1.4.0</trace.version>
     <cloudmonitoring.version>2.2.3</cloudmonitoring.version>
   </properties>
 
diff --git a/samples/snapshot/pom.xml b/samples/snapshot/pom.xml
index ac26eef387..a339e7d1bb 100644
--- a/samples/snapshot/pom.xml
+++ b/samples/snapshot/pom.xml
@@ -22,7 +22,7 @@
     <maven.compiler.source>1.8</maven.compiler.source>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <opencensus.version>0.28.3</opencensus.version>
-    <trace.version>1.3.4</trace.version>
+    <trace.version>1.4.0</trace.version>
     <cloudmonitoring.version>2.2.3</cloudmonitoring.version>
   </properties>