diff --git a/pom.xml b/pom.xml
index 33794e5..721eb8d 100644
--- a/pom.xml
+++ b/pom.xml
@@ -88,7 +88,7 @@
     <java.version>1.8</java.version>
     <guava.version>31.1-jre</guava.version>
     <truth.version>1.1.3</truth.version>
-    <checker.version>3.21.2</checker.version>
+    <checker.version>3.33.0</checker.version>
     <errorprone.version>2.16</errorprone.version>
     <auto-value.version>1.9</auto-value.version>
     <auto-service.version>1.0.1</auto-service.version>