https://github.com/scrapy/scrapy/commit/480cfa199475d867cb51cb04ce76ed54809514f6
https://github.com/scrapy/scrapy/commit/3b64b2449ed2afd3bd4a2173c186fd44c6efac86
diff --git a/setup.py b/setup.py
index 6efe640..252068c 100644
--- a/setup.py
+++ b/setup.py
@@ -124,7 +124,7 @@ def is_not_module(filename):
 else:
     setup_args['install_requires'] = [
         'Twisted>=10.0.0',
-        'w3lib>=1.2',
+        'w3lib>=1.8.0',
         'queuelib',
         'lxml',
         'pyOpenSSL',
diff --git a/requirements.txt b/requirements.txt
index 0df9a55..005b8f4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,6 +2,6 @@ Twisted>=10.0.0
 lxml
 pyOpenSSL
 cssselect>=0.9
-w3lib>=1.2
+w3lib>=1.8.0
 queuelib
 six>=1.5.2
diff --git a/tox.ini b/tox.ini
index 20d54b6..38ef6c4 100644
--- a/tox.ini
+++ b/tox.ini
@@ -48,7 +48,7 @@ deps = (re-based)
     pyOpenSSL>=0.13.1
     cssselect>=0.9
     queuelib>=1.1.1
-    w3lib>=1.5
+    w3lib>=1.8.0
     # tests requirements
     mock
     :HPK:pytest>2.5.2