diff --git a/hix.cabal b/hix.cabal
--- a/hix.cabal
+++ b/hix.cabal
@@ -5,7 +5,7 @@
 -- see: https://github.com/sol/hpack
 
 name:           hix
-version:        0.5.8
+version:        0.6.1
 synopsis:       Haskell/Nix development build tools
 description:    See https://hackage.haskell.org/package/hix/docs/Hix.html
 category:       Build
@@ -99,7 +99,7 @@
     , lens-regex-pcre ==1.1.*
     , optparse-applicative ==0.17.*
     , path ==0.9.*
-    , path-io ==1.7.*
+    , path-io >=1.7 && <1.9
     , random ==1.2.*
     , transformers
     , unix
@@ -215,7 +215,7 @@
     , hix
     , incipit-base ==0.5.*
     , path ==0.9.*
-    , path-io ==1.7.*
+    , path-io >=1.7 && <1.9
     , tasty ==1.4.*
     , tasty-hedgehog >=1.3 && <1.5
     , transformers