diff --git a/spring-pulsar-sample-apps/sample-pulsar-functions/sample-signup-function/build.gradle b/spring-pulsar-sample-apps/sample-pulsar-functions/sample-signup-function/build.gradle
index a10a7653..50aae85e 100644
--- a/spring-pulsar-sample-apps/sample-pulsar-functions/sample-signup-function/build.gradle
+++ b/spring-pulsar-sample-apps/sample-pulsar-functions/sample-signup-function/build.gradle
@@ -12,7 +12,7 @@ repositories {
 
 def versionCatalog = extensions.getByType(VersionCatalogsExtension).named("libs")
 // At Pulsar 4.0.6 things break related to jdk8 requirement - hardcoding at 4.0.5 for now
-def pulsarVersion = '4.0.5'
+def pulsarVersion = '4.0.7'
 
 dependencies {
 	implementation "org.apache.pulsar:pulsar-client-all:${pulsarVersion}"