diff --git a/pom.xml b/pom.xml
index 97051d3b8..fafa27d6b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -14,7 +14,7 @@
     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
 
     <!-- Properties for multiple-artifact deps. -->
-    <auto-value.version>1.11.0</auto-value.version>
+    <auto-value.version>1.11.1</auto-value.version>
     <!--
       We have a separate property for each flavor of Guava (instead of a shared
       version without the -android and -jre suffixes) because that lets
@@ -30,7 +30,7 @@
     -->
     <guava.jre.version>33.4.3-jre</guava.jre.version>
     <gwt.version>2.11.0</gwt.version>
-    <protobuf.version>4.33.0</protobuf.version>
+    <protobuf.version>4.33.1</protobuf.version>
     <!-- Property for protobuf-lite protocArtifact, which isn't a "normal" Maven dep. -->
     <!-- TODO(cpovirk): Use protobuf.version instead. But that requires finding the new way to request the Lite runtime. -->
     <protobuf-lite.protoc.version>3.1.0</protobuf-lite.protoc.version>
@@ -280,7 +280,7 @@
         </plugin>
         <plugin>
           <artifactId>maven-jar-plugin</artifactId>
-          <version>3.4.2</version>
+          <version>3.5.0</version>
         </plugin>
         <plugin>
           <groupId>org.codehaus.mojo</groupId>