diff --git a/spring-integration-zeromq/src/main/java/org/springframework/integration/zeromq/channel/package-info.java b/spring-integration-zeromq/src/main/java/org/springframework/integration/zeromq/channel/package-info.java
index d0cb1239f8..94b7cbea26 100644
--- a/spring-integration-zeromq/src/main/java/org/springframework/integration/zeromq/channel/package-info.java
+++ b/spring-integration-zeromq/src/main/java/org/springframework/integration/zeromq/channel/package-info.java
@@ -1,4 +1,5 @@
 /**
  * Provides classes for message channels support over ZeroMQ.
  */
+@org.springframework.lang.NonNullApi
 package org.springframework.integration.zeromq.channel;
diff --git a/spring-integration-zeromq/src/main/java/org/springframework/integration/zeromq/dsl/package-info.java b/spring-integration-zeromq/src/main/java/org/springframework/integration/zeromq/dsl/package-info.java
index a6e8db60ad..cfb4e53cfa 100644
--- a/spring-integration-zeromq/src/main/java/org/springframework/integration/zeromq/dsl/package-info.java
+++ b/spring-integration-zeromq/src/main/java/org/springframework/integration/zeromq/dsl/package-info.java
@@ -1,4 +1,5 @@
 /**
  * Provides classes for supporting ZeroMQ component via Java DSL.
  */
+@org.springframework.lang.NonNullApi
 package org.springframework.integration.zeromq.dsl;
diff --git a/spring-integration-zeromq/src/main/java/org/springframework/integration/zeromq/inbound/package-info.java b/spring-integration-zeromq/src/main/java/org/springframework/integration/zeromq/inbound/package-info.java
index db224238af..0727022d38 100644
--- a/spring-integration-zeromq/src/main/java/org/springframework/integration/zeromq/inbound/package-info.java
+++ b/spring-integration-zeromq/src/main/java/org/springframework/integration/zeromq/inbound/package-info.java
@@ -1,4 +1,5 @@
 /**
  * Provides classes for inbound channel adapters over ZeroMQ.
  */
+@org.springframework.lang.NonNullApi
 package org.springframework.integration.zeromq.inbound;
diff --git a/spring-integration-zeromq/src/main/java/org/springframework/integration/zeromq/outbound/package-info.java b/spring-integration-zeromq/src/main/java/org/springframework/integration/zeromq/outbound/package-info.java
index 6db6048387..800bb64948 100644
--- a/spring-integration-zeromq/src/main/java/org/springframework/integration/zeromq/outbound/package-info.java
+++ b/spring-integration-zeromq/src/main/java/org/springframework/integration/zeromq/outbound/package-info.java
@@ -1,4 +1,5 @@
 /**
  * Provides classes for outbound channel adapters over ZeroMQ.
  */
+@org.springframework.lang.NonNullApi
 package org.springframework.integration.zeromq.outbound;
diff --git a/spring-integration-zeromq/src/main/java/org/springframework/integration/zeromq/package-info.java b/spring-integration-zeromq/src/main/java/org/springframework/integration/zeromq/package-info.java
index eef1a1a592..9b06b87cb2 100644
--- a/spring-integration-zeromq/src/main/java/org/springframework/integration/zeromq/package-info.java
+++ b/spring-integration-zeromq/src/main/java/org/springframework/integration/zeromq/package-info.java
@@ -1,4 +1,5 @@
 /**
  * Provides common classes for supporting ZeroMQ components.
  */
+@org.springframework.lang.NonNullApi
 package org.springframework.integration.zeromq;