diff --git a/tools/BUILD b/tools/BUILD
index dd081d917..3d9daae48 100644
--- a/tools/BUILD
+++ b/tools/BUILD
@@ -34,10 +34,6 @@ java_package_configuration(
     name = "error_prone",
     javacopts = [
         "-XepDisableWarningsInGeneratedCode",
-        "-Xep:MissingCasesInEnumSwitch:ERROR",
-        "-Xep:ReferenceEquality:WARN",
-        "-Xep:StringEquality:WARN",
-        "-Xep:WildcardImport:ERROR",
         "-Xep:AmbiguousMethodReference:ERROR",
         "-Xep:BadAnnotationImplementation:ERROR",
         "-Xep:BadComparable:WARN",
@@ -66,6 +62,7 @@ java_package_configuration(
         "-Xep:JUnit3FloatingPointComparisonWithoutDelta:ERROR",
         "-Xep:JUnitAmbiguousTestClass:ERROR",
         "-Xep:LiteralClassName:ERROR",
+        "-Xep:MissingCasesInEnumSwitch:ERROR",
         "-Xep:MissingFail:ERROR",
         "-Xep:MissingOverride:ERROR",
         "-Xep:MutableConstantField:WARN",
@@ -78,20 +75,23 @@ java_package_configuration(
         "-Xep:OperatorPrecedence:ERROR",
         "-Xep:OverridesGuiceInjectableMethod:ERROR",
         "-Xep:PreconditionsInvalidPlaceholder:ERROR",
-        "-Xep:ProtoFieldPreconditionsCheckNotNull:ERROR",
         "-Xep:ProtocolBufferOrdinal:ERROR",
+        "-Xep:ProtoFieldPreconditionsCheckNotNull:ERROR",
+        "-Xep:ReferenceEquality:WARN",
         "-Xep:RequiredModifiers:ERROR",
         "-Xep:ShortCircuitBoolean:ERROR",
         "-Xep:SimpleDateFormatConstant:ERROR",
         "-Xep:StaticGuardedByInstance:ERROR",
+        "-Xep:StringEquality:WARN",
         "-Xep:SynchronizeOnNonFinalField:ERROR",
         "-Xep:TruthConstantAsserts:ERROR",
         "-Xep:TypeParameterShadowing:ERROR",
         "-Xep:TypeParameterUnusedInFormals:WARN",
-        "-Xep:URLEqualsHashCode:ERROR",
-        "-Xep:UnusedException:WARN",
         "-Xep:UnsynchronizedOverridesSynchronized:ERROR",
+        "-Xep:UnusedException:WARN",
+        "-Xep:URLEqualsHashCode:ERROR",
         "-Xep:WaitNotInLoop:ERROR",
+        "-Xep:WildcardImport:ERROR",
     ],
     packages = ["error_prone_packages"],
 )