diff --git a/requirements.in b/requirements.in
index d920aa8e4..053435929 100644
--- a/requirements.in
+++ b/requirements.in
@@ -13,14 +13,12 @@ click-datetime==0.2
 git+https://github.com/benoitc/gunicorn.git@1299ea9e967a61ae2edebe191082fd169b864c64#egg=gunicorn[eventlet]==20.1.0
 iso8601==1.0.2
 itsdangerous==2.1.2
-jsonschema==4.4.0
+jsonschema[format]==4.4.0
 marshmallow-sqlalchemy==0.23.1 # pyup: <0.24.0 # marshmallow v3 throws errors
 marshmallow==2.21.0 # pyup: <3 # v3 throws errors
 psycopg2-binary==2.9.3
 PyJWT==2.3.0
 SQLAlchemy==1.4.35
-rfc3339-validator==0.1.4
-rfc3987==1.3.8
 cachetools==5.0.0
 beautifulsoup4==4.10.0
 lxml==4.8.0
diff --git a/requirements.txt b/requirements.txt
index c6a820a2d..59c7bca31 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,6 +8,8 @@ alembic==1.7.4
     # via flask-migrate
 amqp==5.0.9
     # via kombu
+arrow==1.2.2
+    # via isoduration
 attrs==21.2.0
     # via jsonschema
 awscli==1.21.4
@@ -94,6 +96,8 @@ flask-sqlalchemy @ git+https://github.com/mitsuhiko/flask-sqlalchemy.git@500e732
     # via
     #   -r requirements.in
     #   flask-migrate
+fqdn==1.5.1
+    # via jsonschema
 gds-metrics==0.2.4
     # via -r requirements.in
 geojson==2.5.0
@@ -105,11 +109,15 @@ greenlet==1.1.2
 gunicorn @ git+https://github.com/benoitc/gunicorn.git@1299ea9e967a61ae2edebe191082fd169b864c64
     # via -r requirements.in
 idna==3.3
-    # via requests
+    # via
+    #   jsonschema
+    #   requests
 importlib-metadata==4.11.3
     # via flask
 iso8601==1.0.2
     # via -r requirements.in
+isoduration==20.11.0
+    # via jsonschema
 itsdangerous==2.1.2
     # via
     #   -r requirements.in
@@ -123,7 +131,9 @@ jmespath==0.10.0
     # via
     #   boto3
     #   botocore
-jsonschema==4.4.0
+jsonpointer==2.3
+    # via jsonschema
+jsonschema[format]==4.4.0
     # via -r requirements.in
 kombu==5.2.3
     # via celery
@@ -180,6 +190,7 @@ pyrsistent==0.18.0
     # via jsonschema
 python-dateutil==2.8.2
     # via
+    #   arrow
     #   awscli-cwlogs
     #   botocore
 python-json-logger==2.0.2
@@ -201,9 +212,9 @@ requests==2.26.0
     #   notifications-python-client
     #   notifications-utils
 rfc3339-validator==0.1.4
-    # via -r requirements.in
+    # via jsonschema
 rfc3987==1.3.8
-    # via -r requirements.in
+    # via jsonschema
 rsa==4.7.2
     # via awscli
 s3transfer==0.5.0
@@ -233,6 +244,8 @@ sqlalchemy==1.4.35
     #   marshmallow-sqlalchemy
 statsd==3.3.0
     # via notifications-utils
+uri-template==1.2.0
+    # via jsonschema
 urllib3==1.26.7
     # via
     #   botocore
@@ -244,6 +257,8 @@ vine==5.0.0
     #   kombu
 wcwidth==0.2.5
     # via prompt-toolkit
+webcolors==1.11.1
+    # via jsonschema
 webencodings==0.5.1
     # via bleach
 werkzeug==2.0.3