diff --git a/spring-cloud-function-adapters/spring-cloud-function-adapter-azure/pom.xml b/spring-cloud-function-adapters/spring-cloud-function-adapter-azure/pom.xml
index 291b37381..2f1a5b362 100644
--- a/spring-cloud-function-adapters/spring-cloud-function-adapter-azure/pom.xml
+++ b/spring-cloud-function-adapters/spring-cloud-function-adapter-azure/pom.xml
@@ -64,7 +64,7 @@
 		<dependency>
 			<groupId>org.slf4j</groupId>
 			<artifactId>slf4j-log4j12</artifactId>
-			<version>2.0.7</version>
+			<version>2.0.18</version>
 			<scope>test</scope>
 		</dependency>