diff --git a/README.rst b/README.rst
index 46133c9..824956c 100644
--- a/README.rst
+++ b/README.rst
@@ -52,14 +52,14 @@ Requirements
 
 - IDNA for converting links to IDNA format
 - uritools for domain name validation
-- appdirs for determining user's cache directory
+- platformdirs for determining user's cache directory
 - dnspython to cache DNS results
 
    ::
 
        pip install idna
        pip install uritools
-       pip install appdirs
+       pip install platformdirs
        pip install dnspython
 
 Example
diff --git a/requirements.txt b/requirements.txt
index d9d1652..8ba2f4d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 idna
 uritools
 pytest
-appdirs
+platformdirs
 bump2version
 filelock
 dnspython
diff --git a/setup.py b/setup.py
index c2c3bd7..615e924 100644
--- a/setup.py
+++ b/setup.py
@@ -67,7 +67,7 @@ def read(readme):
     install_requires=[
         'idna',
         'uritools',
-        'appdirs',
+        'platformdirs',
         'filelock'
     ],
 )
diff --git a/urlextract/cachefile.py b/urlextract/cachefile.py
index d8449e1..1d89842 100644
--- a/urlextract/cachefile.py
+++ b/urlextract/cachefile.py
@@ -17,7 +17,7 @@
 
 import idna
 import filelock
-from appdirs import user_cache_dir
+from platformdirs import user_cache_dir
 
 
 class CacheFileError(Exception):