diff --git a/requirements.in b/requirements.in
index e60f3225b..36b190669 100644
--- a/requirements.in
+++ b/requirements.in
@@ -26,10 +26,6 @@ beautifulsoup4==4.9.3
 lxml==4.7.1
 Werkzeug==2.0.2
 
-# higher version causes build to fail on PaaS due to lack of Rust
-# see https://github.com/pyca/cryptography/issues/5810
-cryptography<3.4 # pyup: <3.4
-
 notifications-python-client==6.0.2
 
 # PaaS
diff --git a/requirements.txt b/requirements.txt
index f46f4467e..f9e80c822 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -47,7 +47,6 @@ cffi==1.14.5
     # via
     #   -r requirements.in
     #   bcrypt
-    #   cryptography
 charset-normalizer==2.0.7
     # via requests
 click==8.0.3
@@ -68,8 +67,6 @@ click-repl==0.2.0
     # via celery
 colorama==0.4.3
     # via awscli
-cryptography==3.3.2
-    # via -r requirements.in
 dnspython==1.16.0
     # via eventlet
 docopt==0.6.2
@@ -221,7 +218,6 @@ six==1.16.0
     #   bcrypt
     #   bleach
     #   click-repl
-    #   cryptography
     #   eventlet
     #   flask-marshmallow
     #   jsonschema