diff --git a/debian/control b/debian/control
index 16c3790fa..d8005bfe2 100644
--- a/debian/control
+++ b/debian/control
@@ -1,23 +1,24 @@
 Source: swh-web-ui
 Maintainer: Software Heritage developers <swh-devel@inria.fr>
 Section: python
 Priority: optional
 Build-Depends: debhelper (>= 9),
                dh-python,
                python3-all,
                python3-nose,
                python3-setuptools,
-               python3-swh.core,
+               python3-swh.core (>= 0.0.20~),
                python3-swh.storage (>= 0.0.33~),
                python3-vcversioner,
 	       libjs-cryptojs
 Standards-Version: 3.9.6
 Homepage: https://forge.softwareheritage.org/diffusion/DWUI/
 
 Package: python3-swh.web.ui
 Architecture: all
-Depends: python3-swh.storage (>= 0.0.33~),
+Depends: python3-swh.core (>= 0.0.20~),
+         python3-swh.storage (>= 0.0.33~),
          libjs-cryptojs,
          ${misc:Depends},
          ${python3:Depends}
 Description: Software Heritage Web UI
diff --git a/requirements.txt b/requirements.txt
index ecaa28781..d9283bc63 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,17 +1,17 @@
 # Add here external Python modules dependencies, one per line. Module names
 # should match https://pypi.python.org/pypi names. For the full spec or
 # dependency lines, see https://pip.readthedocs.org/en/1.1/requirements.html
 
 # Runtime dependencies
 Flask
 Flask-API
-swh.core
+swh.core >= 0.0.20
 swh.storage >= 0.0.33
 dateutil
 
 # Test dependencies
 #Flask-Testing
 #blinker
 
 # Non-Python dependencies
 # libjs-cryptojs