diff --git a/changelog.md b/changelog.md
index 013f0edc..21c87bd0 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,4 +1,4 @@
-# Unreleased
+# 0.6.6
 
 * Expose environment packages as `legacyPackages.<system>.<env>.<package>` for each entry in `ghcVersions`.
 * Expose local packages, `ghc` and `pkgs` for each env as `legacyPackages.<system>.env.<env>.{<package>,ghc,pkgs}`.
diff --git a/examples/doc-env-selection/flake.nix b/examples/doc-env-selection/flake.nix
index 59b96eb2..511611c7 100644
--- a/examples/doc-env-selection/flake.nix
+++ b/examples/doc-env-selection/flake.nix
@@ -1,6 +1,6 @@
 {
   description = "hix test project";
-  inputs.hix.url = "github:tek/hix?ref=0.6.5";
+  inputs.hix.url = "github:tek/hix?ref=0.6.6";
   outputs = {hix, ...}: hix ({config, ...}: {
     envs = {
       one.env = { number = 1; };
diff --git a/examples/doc-packages/flake.nix b/examples/doc-packages/flake.nix
index 195cc864..86500b8b 100644
--- a/examples/doc-packages/flake.nix
+++ b/examples/doc-packages/flake.nix
@@ -1,6 +1,6 @@
 {
   description = "Example";
-  inputs.hix.url = "github:tek/hix?ref=0.6.5";
+  inputs.hix.url = "github:tek/hix?ref=0.6.6";
   outputs = {hix, ...}: hix {
     packages.parser = {
       src = ./.;
diff --git a/modules/basic.nix b/modules/basic.nix
index 7d330f03..b155929e 100644
--- a/modules/basic.nix
+++ b/modules/basic.nix
@@ -273,7 +273,7 @@ in {
 
       relativePackages = util.relativePackages config.base config.internal.packagePaths;
 
-      hixVersion = "0.6.5";
+      hixVersion = "0.6.6";
 
     };
   };
diff --git a/readme.md b/readme.md
index 4a942c01..8a841307 100644
--- a/readme.md
+++ b/readme.md
@@ -21,7 +21,7 @@ You can convert an existing project with Cabal files by executing this command i
 
 ```
 nix run 'https://flakehub.com/f/tek/hix/~0.6.tar.gz#bootstrap'
-nix run 'github:tek/hix?ref=0.6.5#bootstrap'
+nix run 'github:tek/hix?ref=0.6.6#bootstrap'
 ```
 
 You can create a new project in the current directory: