diff --git a/webapp-runner-10/CHANGELOG.md b/webapp-runner-10/CHANGELOG.md
index 9328bdc2..b05caaa0 100644
--- a/webapp-runner-10/CHANGELOG.md
+++ b/webapp-runner-10/CHANGELOG.md
@@ -4,6 +4,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 
 ## [Unreleased]
 
+- Update Tomcat to version `10.1.33`. ([#546](https://github.com/heroku/webapp-runner/pull/546))
 
 ## [10.1.31.0] - 2024-10-21
 
diff --git a/webapp-runner-10/pom.xml b/webapp-runner-10/pom.xml
index 6f6e6f67..235da519 100644
--- a/webapp-runner-10/pom.xml
+++ b/webapp-runner-10/pom.xml
@@ -4,7 +4,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.heroku</groupId>
     <artifactId>webapp-runner-parent</artifactId>
-    <version>10.1.31.1-SNAPSHOT</version>
+    <version>10.1.33.0-SNAPSHOT</version>
     <packaging>pom</packaging>
     <name>webapp-runner-parent</name>
     <description>Lightweight Application Launcher. Launch your webapp in the most popular open source web container
@@ -66,7 +66,7 @@
         <redisson.version>3.39.0</redisson.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <invoker.plugin.version>2.0.0</invoker.plugin.version>
-        <tomcat.version>10.1.31</tomcat.version>
+        <tomcat.version>10.1.33</tomcat.version>
         <javadoc.plugin.version>3.11.1</javadoc.plugin.version>
         <nexus-staging.plugin.version>1.7.0</nexus-staging.plugin.version>
         <testng.version>7.10.2</testng.version>
diff --git a/webapp-runner-10/webapp-runner-main/pom.xml b/webapp-runner-10/webapp-runner-main/pom.xml
index 0ccb282a..267fb77a 100644
--- a/webapp-runner-10/webapp-runner-main/pom.xml
+++ b/webapp-runner-10/webapp-runner-main/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <artifactId>webapp-runner-parent</artifactId>
         <groupId>com.heroku</groupId>
-        <version>10.1.31.1-SNAPSHOT</version>
+        <version>10.1.33.0-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>webapp-runner-main</artifactId>
diff --git a/webapp-runner-10/webapp-runner-memcached/pom.xml b/webapp-runner-10/webapp-runner-memcached/pom.xml
index 1ea06bee..3a8647a7 100644
--- a/webapp-runner-10/webapp-runner-memcached/pom.xml
+++ b/webapp-runner-10/webapp-runner-memcached/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <artifactId>webapp-runner-parent</artifactId>
         <groupId>com.heroku</groupId>
-        <version>10.1.31.1-SNAPSHOT</version>
+        <version>10.1.33.0-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>webapp-runner-memcached</artifactId>
diff --git a/webapp-runner-10/webapp-runner-redis/pom.xml b/webapp-runner-10/webapp-runner-redis/pom.xml
index 335fcd92..2bfab6ab 100644
--- a/webapp-runner-10/webapp-runner-redis/pom.xml
+++ b/webapp-runner-10/webapp-runner-redis/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <artifactId>webapp-runner-parent</artifactId>
         <groupId>com.heroku</groupId>
-        <version>10.1.31.1-SNAPSHOT</version>
+        <version>10.1.33.0-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>webapp-runner-redis</artifactId>
diff --git a/webapp-runner-10/webapp-runner/pom.xml b/webapp-runner-10/webapp-runner/pom.xml
index 0ef99dad..610e8d42 100644
--- a/webapp-runner-10/webapp-runner/pom.xml
+++ b/webapp-runner-10/webapp-runner/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <artifactId>webapp-runner-parent</artifactId>
         <groupId>com.heroku</groupId>
-        <version>10.1.31.1-SNAPSHOT</version>
+        <version>10.1.33.0-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>webapp-runner</artifactId>
diff --git a/webapp-runner-9/CHANGELOG.md b/webapp-runner-9/CHANGELOG.md
index 6c0ff244..7397f2db 100644
--- a/webapp-runner-9/CHANGELOG.md
+++ b/webapp-runner-9/CHANGELOG.md
@@ -4,6 +4,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 
 ## [Unreleased]
 
+- Update Tomcat to version `9.0.97`. ([#547](https://github.com/heroku/webapp-runner/pull/547))
 
 ## [9.0.96.0] - 2024-10-21