diff --git a/ptr.cabal b/ptr.cabal
--- a/ptr.cabal
+++ b/ptr.cabal
@@ -1,5 +1,5 @@
 name: ptr
-version: 0.16.8.3
+version: 0.16.8.4
 category: Ptr, Data
 synopsis: Experimental abstractions for operations on pointers
 description:
@@ -49,7 +49,7 @@
     strict-list >=0.1.5 && <0.2,
     text >=1 && <3,
     time >=1 && <2,
-    vector >=0.12 && <0.13
+    vector >=0.12 && <0.14
 
 test-suite tests
   type: exitcode-stdio-1.0