diff --git a/module/spring-boot-session-hazelcast/build.gradle b/module/spring-boot-session-hazelcast/build.gradle
index 87b895ca845..318aa178fe7 100644
--- a/module/spring-boot-session-hazelcast/build.gradle
+++ b/module/spring-boot-session-hazelcast/build.gradle
@@ -42,3 +42,7 @@ dependencies {
 
 	testRuntimeOnly("ch.qos.logback:logback-classic")
 }
+
+tasks.named("compileTestJava") {
+	options.nullability.checking = "tests"
+}