diff --git a/requirements.txt b/requirements.txt
index cd44118..dce8d39 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -20,7 +20,6 @@ devpi-ldap==1.2.0
 devpi-server==4.4.0
 devpi-web==3.2.2
 docutils==0.14            # via devpi-web, readme-renderer
-enum34==1.1.6             # via argon2-cffi
 execnet==1.5.0            # via devpi-server
 hupper==1.0               # via pyramid
 idna==2.6                 # via requests
@@ -48,7 +47,7 @@ translationstring==1.3    # via pyramid
 urllib3==1.24.3
 venusian==1.1.0           # via pyramid
 virtualenv==15.1.0        # via tox
-waitress==1.1.0           # via devpi-server
+waitress==1.4.1           # via devpi-server
 webencodings==0.5.1       # via bleach
 webob==1.8.0rc1           # via pyramid
 whoosh==2.7.4             # via devpi-web