diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+# 0.1.0.6
+
+- Support `bytestring-0.12.x`.
+
 # 0.1.0.5
 
 - Support `aeson-2.2.x`.
diff --git a/wai-feature-flags.cabal b/wai-feature-flags.cabal
--- a/wai-feature-flags.cabal
+++ b/wai-feature-flags.cabal
@@ -5,7 +5,7 @@
 -- see: https://github.com/sol/hpack
 
 name:           wai-feature-flags
-version:        0.1.0.5
+version:        0.1.0.6
 synopsis:       Feature flag support for WAI applications.
 description:    Please see the README at <https://github.com/jwoudenberg/wai-feature-flags>.
 category:       Web
@@ -37,7 +37,7 @@
   build-depends:
       aeson >=1.2.4.0 && <2.3
     , base >=4.10.1.0 && <5
-    , bytestring >=0.10.8.2 && <0.12
+    , bytestring >=0.10.8.2 && <0.13
     , splitmix >=0.0.3 && <0.2
     , text >=1.2.3.0 && <2.1
     , unordered-containers >=0.2.9.0 && <0.3