diff --git a/lemur/plugins/lemur_digicert/plugin.py b/lemur/plugins/lemur_digicert/plugin.py
index ae6a5924..59790185 100644
--- a/lemur/plugins/lemur_digicert/plugin.py
+++ b/lemur/plugins/lemur_digicert/plugin.py
@@ -157,7 +157,7 @@ def map_cis_fields(options, csr):
         "csr": csr,
         "signature_hash": signature_hash(options.get('signing_algorithm')),
         "validity": {
-            "valid_to": options['validity_end'].format('YYYY-MM-DDTHH:MM:SSZ')
+            "valid_to": options['validity_end'].format('YYYY-MM-DD')
         },
         "organization": {
             "name": options['organization'],
diff --git a/requirements-tests.txt b/requirements-tests.txt
index 4113ad2a..1e36cef5 100644
--- a/requirements-tests.txt
+++ b/requirements-tests.txt
@@ -14,7 +14,7 @@ certifi==2018.1.18        # via requests
 cffi==1.11.5              # via cryptography
 chardet==3.0.4            # via requests
 click==6.7                # via flask
-cookies==2.2.1            # via moto
+cookies==2.2.1            # via moto, responses
 coverage==4.5.1
 cryptography==2.2.2       # via moto
 docker-pycreds==0.2.2     # via docker
@@ -33,7 +33,7 @@ jsonpickle==0.9.6         # via aws-xray-sdk
 markupsafe==1.0           # via jinja2
 mock==2.0.0               # via moto
 more-itertools==4.1.0     # via pytest
-moto==1.3.1
+moto==1.3.2
 nose==1.3.7
 pbr==4.0.2                # via mock
 pluggy==0.6.0             # via pytest
@@ -48,9 +48,10 @@ python-dateutil==2.6.1    # via botocore, faker, freezegun, moto
 pytz==2018.4              # via moto
 pyyaml==3.12              # via pyaml
 requests-mock==1.4.0
-requests==2.18.4          # via aws-xray-sdk, docker, moto, requests-mock
+requests==2.18.4          # via aws-xray-sdk, docker, moto, requests-mock, responses
+responses==0.9.0          # via moto
 s3transfer==0.1.13        # via boto3
-six==1.11.0               # via cryptography, docker, docker-pycreds, faker, freezegun, mock, more-itertools, moto, pytest, python-dateutil, requests-mock, websocket-client
+six==1.11.0               # via cryptography, docker, docker-pycreds, faker, freezegun, mock, more-itertools, moto, pytest, python-dateutil, requests-mock, responses, websocket-client
 text-unidecode==1.2       # via faker
 urllib3==1.22             # via requests
 websocket-client==0.47.0  # via docker
diff --git a/requirements.txt b/requirements.txt
index 5e8ef031..15c7a1fe 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -34,7 +34,7 @@ inflection==0.3.1
 itsdangerous==0.24        # via flask
 jinja2==2.10
 jmespath==0.9.3           # via boto3, botocore
-josepy==1.0.1             # via acme
+josepy==1.1.0             # via acme
 lockfile==0.12.2
 mako==1.0.7               # via alembic
 markupsafe==1.0           # via jinja2, mako