Updated requirements.
diff --git a/requirements.txt b/requirements.txt
index 828b96f..8f71ab9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-attrs==20.1.0
+attrs==20.2.0
six==1.15.0
Automat==20.2.0
constantly==15.1.0
@@ -9,21 +9,21 @@
PyHamcrest==2.0.2
Tempita==0.5.2
decorator==4.4.2
-pbr==5.4.5
-sqlparse==0.3.1
-SQLAlchemy==1.3.19
+pbr==5.5.1
+sqlparse==0.4.1
+SQLAlchemy==1.3.20
sqlalchemy-migrate==0.13.0
certifi==2020.6.20
chardet==3.0.4
-urllib3==1.25.10
+urllib3==1.25.11
requests==2.24.0
-zope.interface==5.1.0
+zope.interface==5.1.2
pycparser==2.20
pyOpenSSL==19.1.0
pyasn1==0.4.8
pyasn1-modules==0.2.8
service-identity==18.1.0
-cryptography==3.0
-cffi==1.14.2
+cryptography==3.2.1
+cffi==1.14.3
Twisted==20.3.0
-treq==20.4.1
+treq==20.9.0
