diff --git a/project.py b/project.py
index 90664ad..e3da361 100644
--- a/project.py
+++ b/project.py
@@ -3,6 +3,7 @@ Contains abstract class for a mirrored project
 """
 
 from abc import ABC
+import re
 
 import requests
 
@@ -17,4 +18,18 @@ class Project(ABC):
 		"""Check if project packages are up-to-date"""
 		csc_url = CSC_MIRROR + data[project]["csc"] + data[project]["file"]
 		upstream_url = data[project]["upstream"] + data[project]["file"]
-		return requests.get(csc_url).text == requests.get(upstream_url).text
+		CSC = requests.get(csc_url).text
+		upstream = requests.get(upstream_url).text
+		if upstream == CSC:
+			return True
+
+		# Parse number differences
+		bad_re = '[a-zA-Z \-\n]+'
+		if re.search(bad_re, CSC):
+			# print(re.search(bad_re, CSC).group().strip())
+			CSC = re.sub(bad_re, '', CSC)
+			upstream = re.sub(bad_re, '', upstream)
+		try:
+			return int(upstream) - int(CSC) < data[project]["out_of_sync_interval"]
+		except ValueError:
+			return False