diff --git a/build.gradle b/build.gradle
index 95b0a40a44..9f5602898c 100644
--- a/build.gradle
+++ b/build.gradle
@@ -66,7 +66,7 @@ if (JavaVersion.current().isJava11Compatible()) {
     issues {
       all {
         onAny {
-          severity("warn")  // FIXME: switch to "fail" when all issues are addressed
+          severity("fail")
         }
         onUnusedDependencies {
           // We use it for log4j2.xml configuration