diff --git a/README.md b/README.md
index 51453d3..d94a003 100644
--- a/README.md
+++ b/README.md
@@ -255,7 +255,7 @@ Please use only sender OR receiver.
 ## Embedded Libraries
 
 - [ArxContainer v0.3.10](https://github.com/hideakitai/ArxContainer)
-- [ArxTypeTraits v0.2.0](https://github.com/hideakitai/ArxTypeTraits)
+- [ArxTypeTraits v0.2.1](https://github.com/hideakitai/ArxTypeTraits)
 - [TeensyDirtySTLErrorSolution v0.1.0](https://github.com/hideakitai/TeensyDirtySTLErrorSolution)
 
 
diff --git a/util/ArxTypeTraits/ArxTypeTraits/replace_minmax_macros.h b/util/ArxTypeTraits/ArxTypeTraits/replace_minmax_macros.h
index 9668ccc..f8ff86e 100644
--- a/util/ArxTypeTraits/ArxTypeTraits/replace_minmax_macros.h
+++ b/util/ArxTypeTraits/ArxTypeTraits/replace_minmax_macros.h
@@ -6,7 +6,9 @@
 // Make sure Arduino.h is actually included, since otherwise it might be
 // included later and break *uses* of the min/max methods, rather than
 // the declarations of it.
-#include <Arduino.h>
+#ifdef ARDUINO
+    #include <Arduino.h>
+#endif
 
 // These macros are defined by Arduino.h on some platforms, and conflict
 // with min/max methods defined or included by ArxTypeTraits, so replace
diff --git a/util/ArxTypeTraits/README.md b/util/ArxTypeTraits/README.md
index a36ee61..7cac740 100644
--- a/util/ArxTypeTraits/README.md
+++ b/util/ArxTypeTraits/README.md
@@ -103,6 +103,7 @@ C++ type_traits for Arduino which cannot use it as default
 - [Tween](https://github.com/hideakitai/Tween)
 - [ArxStringUtils](https://github.com/hideakitai/ArxStringUtils)
 - [Filters](https://github.com/hideakitai/Filters)
+- [Debouncer](https://github.com/hideakitai/Debouncer)
 
 
 ## Contributors
diff --git a/util/ArxTypeTraits/library.json b/util/ArxTypeTraits/library.json
index 7b853c2..e9ca513 100644
--- a/util/ArxTypeTraits/library.json
+++ b/util/ArxTypeTraits/library.json
@@ -11,7 +11,7 @@
         "url": "https://github.com/hideakitai",
         "maintainer": true
     },
-    "version": "0.2.0",
+    "version": "0.2.1",
     "license": "MIT",
     "frameworks": "arduino",
     "platforms": "*"
diff --git a/util/ArxTypeTraits/library.properties b/util/ArxTypeTraits/library.properties
index e0b2884..27132f6 100644
--- a/util/ArxTypeTraits/library.properties
+++ b/util/ArxTypeTraits/library.properties
@@ -1,5 +1,5 @@
 name=ArxTypeTraits
-version=0.2.0
+version=0.2.1
 author=hideakitai
 maintainer=hideakitai
 sentence=C++ type_traits for Arduino which cannot use it as default