diff --git a/platformio.ini b/platformio.ini
index c93a17c..ea7cd0b 100755
--- a/platformio.ini
+++ b/platformio.ini
@@ -20,8 +20,10 @@ build_flags =
     ;-D DEBUG 
 lib_deps = 
 	northernwidget/DS3231@^1.1.2
-    arduino-libraries/Ethernet
-    robtillaart/CRC
+
+test_filter = 
+    -<DS3231>
+    -<Wire>
 
 lib_ldf_mode = deep+