diff --git a/acl/acl.gradle b/acl/acl.gradle
index 5d95d8caa9..550a7614d6 100644
--- a/acl/acl.gradle
+++ b/acl/acl.gradle
@@ -3,6 +3,7 @@
 dependencies {
     compile project(':spring-security-core'),
             "net.sf.ehcache:ehcache:$ehcacheVersion",
+            "org.springframework:spring-aop:$springVersion",
             "org.springframework:spring-context:$springVersion",
             "org.springframework:spring-core:$springVersion",
             "org.springframework:spring-tx:$springVersion",
diff --git a/samples/contacts/contacts.gradle b/samples/contacts/contacts.gradle
index 38ddb0660c..86459f6537 100644
--- a/samples/contacts/contacts.gradle
+++ b/samples/contacts/contacts.gradle
@@ -7,6 +7,7 @@ dependencies {
     providedCompile 'javax.servlet:servlet-api:2.5@jar'
     compile project(':spring-security-core'),
             project(':spring-security-acl'),
+            "org.springframework:spring-aop:$springVersion",
             "org.springframework:spring-core:$springVersion",
             "org.springframework:spring-beans:$springVersion",
             "org.springframework:spring-context:$springVersion",