diff --git a/pom.xml b/pom.xml
index 85734892..f3e65797 100644
--- a/pom.xml
+++ b/pom.xml
@@ -22,7 +22,7 @@
 
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-		<checkerframework.version>3.38.0</checkerframework.version>
+		<checkerframework.version>3.40.0</checkerframework.version>
 		<maven.compiler.source>11</maven.compiler.source>
 		<maven.compiler.target>11</maven.compiler.target>
 	</properties>