diff --git a/postgresql-simple-opts.cabal b/postgresql-simple-opts.cabal
--- a/postgresql-simple-opts.cabal
+++ b/postgresql-simple-opts.cabal
@@ -1,5 +1,5 @@
 name:                postgresql-simple-opts
-version:             0.5.0.0
+version:             0.5.0.1
 synopsis:            An optparse-applicative and envy parser for postgresql-simple's connection options
 description:         This package exports a optparse-applicative and envy parser and type for postgresql-simple's Options and connection string.
 homepage:            https://github.com/jfischoff/postgresql-simple-opts#readme
@@ -27,8 +27,8 @@
                , split
                , uri-bytestring
                , generic-deriving
-               , postgres-options
-               , envy
+               , postgres-options >= 0.1.0.1
+               , envy < 2.0.0.0
   default-language:    Haskell2010
   ghc-options: -Wall
                -fno-warn-unused-do-bind