diff --git a/ptr.cabal b/ptr.cabal
--- a/ptr.cabal
+++ b/ptr.cabal
@@ -1,5 +1,5 @@
 name: ptr
-version: 0.16.8
+version: 0.16.8.1
 category: Ptr, Data
 synopsis: Abstractions for operations on pointers
 homepage: https://github.com/nikita-volkov/ptr
@@ -38,7 +38,7 @@
     Ptr.List
   build-depends:
     base >=4.9 && <5,
-    bytestring >=0.10 && <0.11,
+    bytestring >=0.10 && <0.12,
     contravariant >=1.3 && <2,
     profunctors >=5.1 && <6,
     text ==1.*,