diff --git a/.clang-tidy b/.clang-tidy
index bf24c92..00337cd 100644
--- a/.clang-tidy
+++ b/.clang-tidy
@@ -8,3 +8,5 @@ Checks: >
   misc-include-cleaner,
   performance-*,
   portability-*
+CheckOptions:
+  misc-include-cleaner.IgnoreHeaders: sys/_types/_size_t\.h
diff --git a/.clangd b/.clangd
index 0781c09..529a35e 100644
--- a/.clangd
+++ b/.clangd
@@ -1,3 +1,5 @@
 ---
 Diagnostics:
-  Suppress: unused-includes
+  MissingIncludes: Strict
+  Includes:
+    IgnoreHeader: sys/_types/_size_t\.h
diff --git a/lib/ulib b/lib/ulib
index ec62a9f..81f4279 160000
--- a/lib/ulib
+++ b/lib/ulib
@@ -1 +1 @@
-Subproject commit ec62a9fd92ae12de970974dea0b67f9ed92712da
+Subproject commit 81f427962a0a0524bcaffe6fc3e8d722ffe90c45