diff --git a/cabal.project b/cabal.project
index b70ea8492..906bdf46d 100644
--- a/cabal.project
+++ b/cabal.project
@@ -10,8 +10,3 @@ packages:
   ./dhall-openapi
   ./dhall-toml
   ./dhall-yaml
-
-source-repository-package
-  type: git
-  location: https://github.com/haskell-nix/hnix.git
-  tag: 2adbc502e62e755ca0372c913e6278ebe564d7d2
diff --git a/dhall-nix/dhall-nix.cabal b/dhall-nix/dhall-nix.cabal
index 8147cdeee..6dca313db 100644
--- a/dhall-nix/dhall-nix.cabal
+++ b/dhall-nix/dhall-nix.cabal
@@ -30,7 +30,7 @@ Library
         containers                               < 0.7 ,
         data-fix                                 < 0.4 ,
         dhall                     >= 1.42     && < 1.43,
-        hnix                      >= 0.16     && < 0.17,
+        hnix                      >= 0.16     && < 0.18,
         lens-family-core          >= 1.0.0    && < 2.2 ,
         neat-interpolation                       < 0.6 ,
         text                      >= 0.8.0.0  && < 2.1
diff --git a/dhall-nixpkgs/dhall-nixpkgs.cabal b/dhall-nixpkgs/dhall-nixpkgs.cabal
index 2b03c20e2..9075f40e5 100644
--- a/dhall-nixpkgs/dhall-nixpkgs.cabal
+++ b/dhall-nixpkgs/dhall-nixpkgs.cabal
@@ -24,7 +24,7 @@ Executable dhall-to-nixpkgs
                      , data-fix
                      , dhall                >= 1.42.0   && < 1.43
                      , foldl                               < 1.5
-                     , hnix                 >= 0.10.1   && < 0.17
+                     , hnix                 >= 0.10.1   && < 0.18
                      , lens-family-core     >= 1.0.0    && < 2.2
                      -- megaparsec follows SemVer: https://github.com/mrkkrp/megaparsec/issues/469#issuecomment-927918469
                      , megaparsec           >= 7.0.0    && < 10