diff --git a/CHANGES.md b/CHANGES.md
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,7 @@
+# v1.2.0.1
+
+Support `fused-effects` 1.1.
+
 # v1.2.0.0
 
 Introduce `?=` and `<~`.
diff --git a/fused-effects-lens.cabal b/fused-effects-lens.cabal
--- a/fused-effects-lens.cabal
+++ b/fused-effects-lens.cabal
@@ -1,7 +1,7 @@
 cabal-version:       2.4
 
 name:                fused-effects-lens
-version:             1.2.0.0
+version:             1.2.0.1
 synopsis:            Monadic lens combinators for fused-effects.
 description:         Provides combinators for the lens-based manipulation of state and context types provided by the fused-effects library, similar to those provided for mtl-based monad transformers.
 homepage:            https://github.com/fused-effects/fused-effects-lens#readme
@@ -22,7 +22,7 @@
   default-language:    Haskell2010
   build-depends:       base           >= 4.7 && < 5
                      , microlens      >= 0.4 && < 1
-                     , fused-effects ^>= 1.0
+                     , fused-effects  >= 1.0 && < 1.2
   ghc-options:         -Wall
 
 test-suite test
@@ -39,4 +39,3 @@
 source-repository head
   type:     git
   location: https://github.com/fused-effects/fused-effects-lens
-