diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index fb7aa14b..f6818949 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -1,7 +1,7 @@
 [versions]
 openapiparser = "2026.3-SNAPSHOT"
 
-checker = "4.2.2"
+checker = "4.2.3"
 
 [libraries]
 checker = { module = "org.checkerframework:checker", version.ref = "checker" }