diff --git a/examples/example-spring-boot-starter-web/build.gradle b/examples/example-spring-boot-starter-web/build.gradle
index af2fa2a..d9c7289 100644
--- a/examples/example-spring-boot-starter-web/build.gradle
+++ b/examples/example-spring-boot-starter-web/build.gradle
@@ -6,6 +6,8 @@ plugins {
 }
 
 ext['jackson-bom.version'] = '3.1.1'
+ext['netty.version'] = '4.2.13.Final'
+ext['tomcat.version'] = '11.0.22'
 
 dependencies {
     implementation project(':examples:examples-common')
diff --git a/examples/example-spring-boot-starter-webflux/build.gradle b/examples/example-spring-boot-starter-webflux/build.gradle
index 11643fb..0e84d99 100644
--- a/examples/example-spring-boot-starter-webflux/build.gradle
+++ b/examples/example-spring-boot-starter-webflux/build.gradle
@@ -6,6 +6,8 @@ plugins {
 }
 
 ext['jackson-bom.version'] = '3.1.1'
+ext['netty.version'] = '4.2.13.Final'
+ext['tomcat.version'] = '11.0.22'
 
 dependencies {
     implementation project(':examples:examples-common')