diff --git a/requirements/scrapy.txt b/requirements/scrapy.txt
index 4d8aab3d7c..a8f7c89cc4 100644
--- a/requirements/scrapy.txt
+++ b/requirements/scrapy.txt
@@ -1,5 +1,11 @@
 Scrapy==1.4.0
 cryptography==1.9
+asn1crypto==0.22.0
+
+# Required by cryptography, only for Python 2 (should be removed once we
+# migrate to Python 3):
+ipaddress==1.0.18
+
 parsel==1.2.0
 pyOpenSSL==17.0.0
 w3lib==1.17.0
diff --git a/version.py b/version.py
index 25e57d2756..e4a81dceaa 100644
--- a/version.py
+++ b/version.py
@@ -1,2 +1,2 @@
 ZULIP_VERSION = "1.6.0+git"
-PROVISION_VERSION = '5.9'
+PROVISION_VERSION = '5.10'