diff --git a/debian/changelog b/debian/changelog
index 4b2be8f..3f4cdb1 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,10 @@
+calamares (3.3.14-0ubuntu2) UNRELEASED; urgency=medium
+
+  * Add some Breaks/Replaces for the odd case where Calamares is already
+    installed. Drop this after 26.04 LTS.
+
+ -- Simon Quigley <tsimonq2@ubuntu.com>  Sat, 22 Feb 2025 09:19:06 -0600
+
 calamares (3.3.14-0ubuntu1) plucky; urgency=medium
 
   * New upstream release.
diff --git a/debian/control b/debian/control
index 6abb742..bcf2d79 100644
--- a/debian/control
+++ b/debian/control
@@ -62,6 +62,8 @@ Depends: calamares-data (= ${binary:Version}),
          util-linux-extra,
          ${misc:Depends},
          ${shlibs:Depends}
+Breaks: calamares (<< 3.3.14-0ubuntu1)
+Replaces: calamares (<< 3.3.14-0ubuntu1)
 Recommends: btrfs-progs, squashfs-tools
 Description: distribution-independent installer framework
  Calamares is a distribution-independent installer framework.
@@ -78,6 +80,8 @@ Description: distribution-independent installer framework
 Package: calamares-data
 Architecture: all
 Depends: ${misc:Depends}, ${qml6:Depends}
+Breaks: calamares (<< 3.3.14-0ubuntu1)
+Replaces: calamares (<< 3.3.14-0ubuntu1)
 Description: data for Calamares
  Calamares is a distribution-independent installer framework.
  .
@@ -99,6 +103,8 @@ Depends: libcalamares3.3 (= ${binary:Version}),
          libcalamaresui3.3 (= ${binary:Version}),
          ${misc:Depends},
          ${shlibs:Depends}
+Breaks: calamares (<< 3.3.14-0ubuntu1)
+Replaces: calamares (<< 3.3.14-0ubuntu1)
 Description: Development files for Calamares
  Calamares is a distribution-independent installer framework.
  .
@@ -118,6 +124,8 @@ Section: libs
 Architecture: linux-any
 Provides: libcalamares
 Depends: ${misc:Depends}, ${shlibs:Depends}
+Breaks: calamares (<< 3.3.14-0ubuntu1)
+Replaces: calamares (<< 3.3.14-0ubuntu1)
 Description: Shared object files for Calamares
  Calamares is a distribution-independent installer framework.
  .
@@ -137,6 +145,8 @@ Section: libs
 Architecture: linux-any
 Provides: libcalamaresui
 Depends: ${misc:Depends}, ${shlibs:Depends}
+Breaks: calamares (<< 3.3.14-0ubuntu1)
+Replaces: calamares (<< 3.3.14-0ubuntu1)
 Description: UI shared object files for Calamares
  Calamares is a distribution-independent installer framework.
  .