diff --git a/tests/parse/test.py b/tests/parse/test.py
index c020641..cfae90c 100644
--- a/tests/parse/test.py
+++ b/tests/parse/test.py
@@ -4,7 +4,7 @@ codepoints = 0
 
 file = '/usr/share/unicode/ucd/UnicodeData.txt'
 
-with open(file, mode='rt', encoding='utf-8') as unicode_data:
+with open(file, mode='rt', encoding='ascii') as unicode_data:
     for line in unicode_data.readlines():
         codepoint_string, name, category = line.split(';')[:3]
         codepoint = int(codepoint_string, 16)
@@ -12,5 +12,5 @@ with open(file, mode='rt', encoding='utf-8') as unicode_data:
         codepoints = codepoints + 1
 
 print(codepoints)
-# Unicode 16 has 40116
-assert(codepoints > 40000)
+# Unicode 17
+assert(codepoints == 40575)