diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Revision history for `canadian-income-tax`
 
+## 2024.1.0.1
+
+* Bumped the upper `deep-transformations` dependency bounds
+
 ## 2024.1
 
 * Library function behaviour changes:
@@ -9,6 +13,10 @@
 * Fixed compiler warnings
 * Added command line option help
 * Added logging to the web server
+
+## 2024.0.0.1
+
+* Bumped the upper `deep-transformations` dependency bounds, backport
 
 ## 2024.0
 
diff --git a/canadian-income-tax.cabal b/canadian-income-tax.cabal
--- a/canadian-income-tax.cabal
+++ b/canadian-income-tax.cabal
@@ -1,6 +1,6 @@
 cabal-version:      2.4
 name:               canadian-income-tax
-version:            2024.1
+version:            2024.1.0.1
 
 synopsis: Canadian income tax calculation
 
@@ -94,7 +94,8 @@
     -- other-extensions:
     build-depends:    base == 4.*, text >= 1.0 && < 2.2, bytestring >= 0.10.4 && < 1,
                       time == 1.*, containers >= 0.5 && < 0.9, bitwise-enum ^>= 1.0.0, bifunctors ^>= 5.6,
-                      monoid-subclasses == 1.*, rank2classes ^>= 1.5.3, deep-transformations ^>= 0.2.2 || ^>= 0.3,
+                      monoid-subclasses == 1.*, rank2classes ^>= 1.5.3,
+                      deep-transformations ^>= 0.2.2 || ^>= 0.3 || ^>= 0.4,
                       ca-province-codes == 1.0.*, forms-data-format ^>= 0.2, typed-process >= 0.1 && ^>=0.2,
                       template-haskell == 2.*
     hs-source-dirs:   src