diff --git a/annotation-file-utilities/build.gradle b/annotation-file-utilities/build.gradle
index 0e512a3bf..35aac15b6 100644
--- a/annotation-file-utilities/build.gradle
+++ b/annotation-file-utilities/build.gradle
@@ -58,7 +58,7 @@ dependencies {
     implementation 'org.plumelib:reflection-util:1.0.5'
     // Annotations in checker-qual.jar are used, but no checkers are (currently) run on the code.
     compileOnly 'io.github.eisop:checker-qual:3.27.0-eisop1'
-    ext.errorproneVersion = '2.16'
+    ext.errorproneVersion = '2.18.0'
     implementation "com.google.errorprone:error_prone_annotations:${errorproneVersion}"
     implementation ('org.checkerframework.annotatedlib:guava:30.1.1-jre') {
         // So long as Guava only uses annotations from checker-qual, excluding it should not cause problems.