diff --git a/maven-core/src/main/java/org/apache/maven/repository/ArtifactTransferEvent.java b/maven-core/src/main/java/org/apache/maven/repository/ArtifactTransferEvent.java
index 6e7e1efe55..885048e23e 100644
--- a/maven-core/src/main/java/org/apache/maven/repository/ArtifactTransferEvent.java
+++ b/maven-core/src/main/java/org/apache/maven/repository/ArtifactTransferEvent.java
@@ -245,7 +245,7 @@ public class ArtifactTransferEvent
 
     public String toString()
     {
-        StringBuffer sb = new StringBuffer();
+        StringBuilder sb = new StringBuilder();
 
         sb.append( "TransferEvent[" );
 
diff --git a/maven-embedder/src/main/java/org/apache/maven/cli/CLIReportingUtils.java b/maven-embedder/src/main/java/org/apache/maven/cli/CLIReportingUtils.java
index 0ed30dc08a..3b11aa09d9 100644
--- a/maven-embedder/src/main/java/org/apache/maven/cli/CLIReportingUtils.java
+++ b/maven-embedder/src/main/java/org/apache/maven/cli/CLIReportingUtils.java
@@ -51,7 +51,7 @@ public final class CLIReportingUtils
     {
         final String LS = System.getProperty( "line.separator" );
         Properties properties = getBuildProperties();
-        StringBuffer version = new StringBuffer();
+        StringBuilder version = new StringBuilder();
         version.append( createMavenVersionString( properties ) ).append( LS );
         version.append( reduce( properties.getProperty( "distributionShortName" ) + " home: "
                             + System.getProperty( "maven.home", "<unknown maven home>" ) ) ).append( LS );