diff --git a/esqueleto.cabal b/esqueleto.cabal
--- a/esqueleto.cabal
+++ b/esqueleto.cabal
@@ -1,5 +1,5 @@
 name:                esqueleto
-version:             1.4.3
+version:             1.4.4
 synopsis:            Type-safe EDSL for SQL queries on persistent backends.
 homepage:            https://github.com/prowdsponsor/esqueleto
 license:             BSD3
diff --git a/src/Database/Esqueleto/Internal/Language.hs b/src/Database/Esqueleto/Internal/Language.hs
--- a/src/Database/Esqueleto/Internal/Language.hs
+++ b/src/Database/Esqueleto/Internal/Language.hs
@@ -354,6 +354,11 @@
 -- <https://ghc.haskell.org/trac/ghc/ticket/6124>
 
 
+-- | /Since: 1.4.4/
+instance Functor Value where
+  fmap f (Value a) = Value (f a)
+
+
 -- | Unwrap a 'Value'.
 --
 -- /Since: 1.4.1/