diff --git a/debian/changelog b/debian/changelog
index 5f76072..6cac4aa 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -6,6 +6,9 @@ ubuntu-dev-tools (0.178) UNRELEASED; urgency=medium
   [ Mattia Rizzolo ]
   * d/control: Bump Standards-Version to 4.5.1, no changes needed.
 
+  [ You-Sheng Yang ]
+  * Add a dependency on tzdata, used by mk-sbuild.
+
  -- Mattia Rizzolo <mattia@debian.org>  Tue, 22 Dec 2020 17:50:52 +0100
 
 ubuntu-dev-tools (0.177) unstable; urgency=medium
diff --git a/debian/control b/debian/control
index f63e66a..de4dc6d 100644
--- a/debian/control
+++ b/debian/control
@@ -55,6 +55,7 @@ Depends:
  python3-ubuntutools (= ${binary:Version}),
  sensible-utils,
  sudo,
+ tzdata,
  ${misc:Depends},
  ${perl:Depends},
 Recommends: