diff --git a/modules/jooby-log4j/pom.xml b/modules/jooby-log4j/pom.xml
index ea557f44b8..9a3e89c9bc 100644
--- a/modules/jooby-log4j/pom.xml
+++ b/modules/jooby-log4j/pom.xml
@@ -19,6 +19,12 @@
       <version>${jooby.version}</version>
     </dependency>
 
+    <dependency>
+      <groupId>org.jspecify</groupId>
+      <artifactId>jspecify</artifactId>
+      <version>1.0.0</version>
+    </dependency>
+
     <dependency>
       <groupId>org.apache.logging.log4j</groupId>
       <artifactId>log4j-core</artifactId>
diff --git a/modules/jooby-log4j/src/main/java/module-info.java b/modules/jooby-log4j/src/main/java/module-info.java
index 67c2e3c112..164c9aabcb 100644
--- a/modules/jooby-log4j/src/main/java/module-info.java
+++ b/modules/jooby-log4j/src/main/java/module-info.java
@@ -9,6 +9,7 @@
   requires org.slf4j;
   requires org.apache.logging.log4j;
   requires org.apache.logging.log4j.core;
+  requires org.jspecify;
 
   provides LoggingService with
       Log4jService;