diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 146c7743..1cddeba6 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -33,6 +33,8 @@ jobs:
 
       - name: Build
         uses: cylc/release-actions/build-python-package@v1
+        with: 
+          check-dependencies: false
 
       - name: Inspect
         run: |
diff --git a/cylc/uiserver/__init__.py b/cylc/uiserver/__init__.py
index 4c56b98c..926d1d41 100644
--- a/cylc/uiserver/__init__.py
+++ b/cylc/uiserver/__init__.py
@@ -13,7 +13,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-__version__ = "1.3.1.dev"
+__version__ = "1.4.0.dev"
 
 import os
 from typing import Dict
diff --git a/setup.cfg b/setup.cfg
index 6b3315b1..eee4d1f0 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -21,7 +21,7 @@ description = Cylc UI Server
 long_description_content_type=text/markdown
 long_description = file: README.md
 license = GPL
-license_file = COPYING
+license_files = COPYING,
 platforms = any
 classifiers =
     Environment :: Console
@@ -50,7 +50,7 @@ install_requires =
     # bleeding-edge version.
     # NB: no graphene version specified; we only make light use of it in our
     # own code, so graphene-tornado's transitive version should do.
-    cylc-flow==8.2.*
+    cylc-flow==8.3.*
     ansimarkup>=1.0.0
     graphene
     graphene-tornado==2.6.*