debian/changelog

+custodia (0.5.0-3) unstable; urgency=medium
+
+  * control: Drop configparser from python3-custodia Depends, it's
+    shipped by python3 itself.
+
+ -- Timo Aaltonen <tjaalton@debian.org>  Tue, 26 Dec 2017 20:49:20 +0200
+
 custodia (0.5.0-2) unstable; urgency=medium
 
   * control: Add python-configparser, -cryptography and -six to depends.

debian/control

@@ -68,7 +68,6 @@ Description: Python bindings to Custodia -- Modular and pluggable Secrets Manage
 Package: python3-custodia
 Architecture: all
 Depends: ${misc:Depends}, ${python3:Depends},
- python3-configparser,
  python3-cryptography,
  python3-jwcrypto (>= 0.4.2),
  python3-requests,