diff --git a/PKG-INFO b/PKG-INFO
index 2282411c55d84afaa0ac425840165bc81dae41b9..64ed44f8f32dc0cb9953114500fccbd427a067c6 100644
--- a/PKG-INFO
+++ b/PKG-INFO
@@ -1,6 +1,6 @@
 Metadata-Version: 2.1
 Name: swh.deposit
-Version: 1.4.2
+Version: 1.4.3
 Summary: Software Heritage Deposit Server
 Home-page: https://forge.softwareheritage.org/source/swh-deposit/
 Author: Software Heritage developers
diff --git a/debian/changelog b/debian/changelog
index 9d156b6541ae7bad5aa7c89d0e617f642eeccf4e..b450733848d17d23c07198c927244712d6898c12 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,8 +1,11 @@
-swh-deposit (1.4.2-1~swh1~bpo10+1) buster-swh; urgency=medium
+swh-deposit (1.4.3-1~swh1) unstable-swh; urgency=medium
 
-  * Rebuild for buster-swh
+  * New upstream release 1.4.3     - (tagged by Antoine R. Dumont
+    (@ardumont) <ardumont@softwareheritage.org> on 2023-11-24 09:52:44
+    +0100)
+  * Upstream changes:     - v1.4.3
 
- -- Software Heritage autobuilder (on jenkins-debian1) <jenkins@jenkins-debian1.internal.softwareheritage.org>  Thu, 23 Nov 2023 11:24:36 +0000
+ -- Software Heritage autobuilder (on jenkins-debian1) <jenkins@jenkins-debian1.internal.softwareheritage.org>  Fri, 24 Nov 2023 08:59:37 +0000
 
 swh-deposit (1.4.2-1~swh1) unstable-swh; urgency=medium
 
diff --git a/swh.deposit.egg-info/PKG-INFO b/swh.deposit.egg-info/PKG-INFO
index 2282411c55d84afaa0ac425840165bc81dae41b9..64ed44f8f32dc0cb9953114500fccbd427a067c6 100644
--- a/swh.deposit.egg-info/PKG-INFO
+++ b/swh.deposit.egg-info/PKG-INFO
@@ -1,6 +1,6 @@
 Metadata-Version: 2.1
 Name: swh.deposit
-Version: 1.4.2
+Version: 1.4.3
 Summary: Software Heritage Deposit Server
 Home-page: https://forge.softwareheritage.org/source/swh-deposit/
 Author: Software Heritage developers
diff --git a/swh/deposit/settings/production.py b/swh/deposit/settings/production.py
index 61b5ee6065b9f082f95076b136cb1f35a54c1387..33e1d0639ac6a4289e2ad0a3f469bb2550403cfd 100644
--- a/swh/deposit/settings/production.py
+++ b/swh/deposit/settings/production.py
@@ -134,7 +134,10 @@ if cfg_azure:
     object_parameters = {}
     for optional_config_key in ["content_type", "content_disposition"]:
         if optional_config_key in cfg_azure:
-            object_parameters[optional_config_key] = cfg_azure[optional_config_key]
+            value = cfg_azure[optional_config_key]
+            # Explicit "" as None instead of empty string which is not interpreted
+            # correctly
+            object_parameters[optional_config_key] = None if not value else value
 
     options.update(dict(object_parameters=object_parameters))