diff --git a/pydetex/version.py b/pydetex/version.py
index f926ab2..6c8f624 100644
--- a/pydetex/version.py
+++ b/pydetex/version.py
@@ -17,7 +17,7 @@ class Version(tuple):
     __slots__ = ()
     fields = 'major', 'minor', 'patch'
 
-    def __new__(cls, major, minor, patch) -> 'Version':
+    def __new__(cls, major, minor, patch) -> tuple:
         return tuple.__new__(cls, (major, minor, patch))
 
     def __repr__(self) -> str:
@@ -32,6 +32,6 @@ def __str__(self) -> str:
     patch = property(lambda self: self[2])
 
 
-vernum = Version(1, 0, 8)
+vernum = Version(1, 0, 9)
 ver = str(vernum)
 rev = ''
diff --git a/requirements.txt b/requirements.txt
index c6efa2e..4fbb206 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,9 +1,9 @@
-beautifulsoup4 >= 4.11.1
+beautifulsoup4 >= 4.12.2
 flatlatex >= 0.15
 langdetect >= 1.0.9
-nltk >= 3.7
+nltk >= 3.8.1
 outdated >= 0.2.2
-PyMultiDictionary>=1.2.3
+PyMultiDictionary>=1.2.4
 pyperclip >= 1.8.2
-requests >= 2.28.1
+requests >= 2.31.0
 tkmacosx >= 1.0.5
\ No newline at end of file