diff --git a/PKG-INFO b/PKG-INFO
index 99b583e..3a27ae1 100644
--- a/PKG-INFO
+++ b/PKG-INFO
@@ -1,28 +1,28 @@
 Metadata-Version: 2.1
 Name: swh.core
-Version: 0.0.54
+Version: 0.0.55
 Summary: Software Heritage core utilities
 Home-page: https://forge.softwareheritage.org/diffusion/DCORE/
 Author: Software Heritage developers
 Author-email: swh-devel@inria.fr
 License: UNKNOWN
+Project-URL: Source, https://forge.softwareheritage.org/source/swh-core
 Project-URL: Funding, https://www.softwareheritage.org/donate
 Project-URL: Bug Reports, https://forge.softwareheritage.org/maniphest
-Project-URL: Source, https://forge.softwareheritage.org/source/swh-core
 Description: swh-core
         ========
         
         core library for swh's modules:
         - config parser
         - hash computations
         - serialization
         - logging mechanism
         
 Platform: UNKNOWN
 Classifier: Programming Language :: Python :: 3
 Classifier: Intended Audience :: Developers
 Classifier: License :: OSI Approved :: GNU General Public License v3 (GPLv3)
 Classifier: Operating System :: OS Independent
 Classifier: Development Status :: 5 - Production/Stable
 Description-Content-Type: text/markdown
 Provides-Extra: testing
diff --git a/requirements.txt b/requirements.txt
index 0b91831..f0a8893 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,11 +1,11 @@
 arrow
 aiohttp
-msgpack-python
+msgpack-python > 0.5
 psycopg2
 python-dateutil
 vcversioner
 PyYAML
 requests
 Flask
 systemd-python
 decorator
diff --git a/swh.core.egg-info/PKG-INFO b/swh.core.egg-info/PKG-INFO
index 99b583e..3a27ae1 100644
--- a/swh.core.egg-info/PKG-INFO
+++ b/swh.core.egg-info/PKG-INFO
@@ -1,28 +1,28 @@
 Metadata-Version: 2.1
 Name: swh.core
-Version: 0.0.54
+Version: 0.0.55
 Summary: Software Heritage core utilities
 Home-page: https://forge.softwareheritage.org/diffusion/DCORE/
 Author: Software Heritage developers
 Author-email: swh-devel@inria.fr
 License: UNKNOWN
+Project-URL: Source, https://forge.softwareheritage.org/source/swh-core
 Project-URL: Funding, https://www.softwareheritage.org/donate
 Project-URL: Bug Reports, https://forge.softwareheritage.org/maniphest
-Project-URL: Source, https://forge.softwareheritage.org/source/swh-core
 Description: swh-core
         ========
         
         core library for swh's modules:
         - config parser
         - hash computations
         - serialization
         - logging mechanism
         
 Platform: UNKNOWN
 Classifier: Programming Language :: Python :: 3
 Classifier: Intended Audience :: Developers
 Classifier: License :: OSI Approved :: GNU General Public License v3 (GPLv3)
 Classifier: Operating System :: OS Independent
 Classifier: Development Status :: 5 - Production/Stable
 Description-Content-Type: text/markdown
 Provides-Extra: testing
diff --git a/swh.core.egg-info/requires.txt b/swh.core.egg-info/requires.txt
index 4ef9ee7..f662b69 100644
--- a/swh.core.egg-info/requires.txt
+++ b/swh.core.egg-info/requires.txt
@@ -1,17 +1,17 @@
 arrow
 aiohttp
-msgpack-python
+msgpack-python>0.5
 psycopg2
 python-dateutil
 vcversioner
 PyYAML
 requests
 Flask
 systemd-python
 decorator
 
 [testing]
 pytest<4
 pytest-postgresql
 requests-mock
 hypothesis>=3.11.0
diff --git a/version.txt b/version.txt
index dd9ee8d..c1a00f1 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-v0.0.54-0-gc80a4af
\ No newline at end of file
+v0.0.55-0-g2ef40b2
\ No newline at end of file