diff --git a/gson/pom.xml b/gson/pom.xml
index 68588eca62..a70c382fef 100644
--- a/gson/pom.xml
+++ b/gson/pom.xml
@@ -66,13 +66,13 @@
     <dependency>
       <groupId>com.google.guava</groupId>
       <artifactId>guava-testlib</artifactId>
-      <version>33.5.0-jre</version>
+      <version>33.6.0-jre</version>
       <scope>test</scope>
     </dependency>
     <dependency>
       <groupId>com.google.guava</groupId>
       <artifactId>guava</artifactId>
-      <version>33.5.0-jre</version>
+      <version>33.6.0-jre</version>
       <scope>test</scope>
     </dependency>
   </dependencies>
@@ -211,7 +211,7 @@
           <dependency>
             <groupId>com.guardsquare</groupId>
             <artifactId>proguard-base</artifactId>
-            <version>7.8.2</version>
+            <version>7.9.1</version>
           </dependency>
           <dependency>
             <groupId>com.guardsquare</groupId>
diff --git a/metrics/pom.xml b/metrics/pom.xml
index 2ef0f0e6b7..913647f65b 100644
--- a/metrics/pom.xml
+++ b/metrics/pom.xml
@@ -53,7 +53,7 @@
     <dependency>
       <groupId>com.fasterxml.jackson.core</groupId>
       <artifactId>jackson-databind</artifactId>
-      <version>2.21.1</version>
+      <version>2.21.3</version>
     </dependency>
     <dependency>
       <groupId>com.google.caliper</groupId>
diff --git a/pom.xml b/pom.xml
index 78831e8b30..dd48b107d9 100644
--- a/pom.xml
+++ b/pom.xml
@@ -100,7 +100,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-enforcer-plugin</artifactId>
-        <version>3.6.2</version>
+        <version>3.6.3</version>
         <executions>
           <execution>
             <id>enforce-versions</id>
@@ -132,7 +132,7 @@
       <plugin>
         <groupId>com.diffplug.spotless</groupId>
         <artifactId>spotless-maven-plugin</artifactId>
-        <version>3.3.0</version>
+        <version>3.5.1</version>
         <executions>
           <execution>
             <goals>
@@ -478,7 +478,7 @@
         <plugin>
           <groupId>com.github.siom79.japicmp</groupId>
           <artifactId>japicmp-maven-plugin</artifactId>
-          <version>0.25.4</version>
+          <version>0.25.7</version>
           <configuration>
             <skip>${gson.isTestModule}</skip>
 
diff --git a/proto/pom.xml b/proto/pom.xml
index 009d4d664b..c08080f42f 100644
--- a/proto/pom.xml
+++ b/proto/pom.xml
@@ -31,7 +31,7 @@
     <!-- This is duplicated here because that is recommended by `artifact:check-buildplan` -->
     <project.build.outputTimestamp>2026-04-23T19:00:38Z</project.build.outputTimestamp>
 
-    <protobufVersion>4.34.0</protobufVersion>
+    <protobufVersion>4.34.1</protobufVersion>
   </properties>
 
   <licenses>
@@ -57,7 +57,7 @@
     <dependency>
       <groupId>com.google.guava</groupId>
       <artifactId>guava</artifactId>
-      <version>33.5.0-jre</version>
+      <version>33.6.0-jre</version>
     </dependency>
 
     <dependency>
@@ -91,7 +91,7 @@
       <plugin>
         <groupId>io.github.ascopes</groupId>
         <artifactId>protobuf-maven-plugin</artifactId>
-        <version>5.0.2</version>
+        <version>5.1.4</version>
         <configuration>
           <skip>${maven.test.skip}</skip>
           <protoc>${protobufVersion}</protoc>
diff --git a/test-graal-native-image/pom.xml b/test-graal-native-image/pom.xml
index 6a680c5fd7..3689fc54bc 100644
--- a/test-graal-native-image/pom.xml
+++ b/test-graal-native-image/pom.xml
@@ -137,7 +137,7 @@
           <plugin>
             <groupId>org.graalvm.buildtools</groupId>
             <artifactId>native-maven-plugin</artifactId>
-            <version>0.11.5</version>
+            <version>1.1.0</version>
             <extensions>true</extensions>
             <executions>
               <execution>
diff --git a/test-shrinker/pom.xml b/test-shrinker/pom.xml
index e00d250efd..2672c96389 100644
--- a/test-shrinker/pom.xml
+++ b/test-shrinker/pom.xml
@@ -79,7 +79,7 @@
           <dependency>
             <groupId>com.guardsquare</groupId>
             <artifactId>proguard-base</artifactId>
-            <version>7.8.2</version>
+            <version>7.9.1</version>
           </dependency>
           <dependency>
             <groupId>com.guardsquare</groupId>