diff --git a/doc/manual/source/SUMMARY.md.in b/doc/manual/source/SUMMARY.md.in
index dd3218d2f..b4458fc8c 100644
--- a/doc/manual/source/SUMMARY.md.in
+++ b/doc/manual/source/SUMMARY.md.in
@@ -129,6 +129,7 @@
   - [Contributing](development/contributing.md)
 - [Determinate Nix Release Notes](release-notes-determinate/index.md)
   - [Changes between Nix and Determinate Nix](release-notes-determinate/changes.md)<!-- next -->
+  - [Release 3.6.7 (2025-06-24)](release-notes-determinate/rl-3.6.7.md)
   - [Release 3.6.6 (2025-06-17)](release-notes-determinate/rl-3.6.6.md)
   - [Release 3.6.5 (2025-06-16)](release-notes-determinate/rl-3.6.5.md)
   - [Release 3.6.2 (2025-06-02)](release-notes-determinate/rl-3.6.2.md)
diff --git a/doc/manual/source/release-notes-determinate/changes.md b/doc/manual/source/release-notes-determinate/changes.md
index 6f27f7f6b..f3183883c 100644
--- a/doc/manual/source/release-notes-determinate/changes.md
+++ b/doc/manual/source/release-notes-determinate/changes.md
@@ -1,6 +1,6 @@
 # Changes between Nix and Determinate Nix
 
-This section lists the differences between upstream Nix 2.29 and Determinate Nix 3.6.6.<!-- differences -->
+This section lists the differences between upstream Nix 2.29 and Determinate Nix 3.6.7.<!-- differences -->
 
 * In Determinate Nix, flakes are stable. You no longer need to enable the `flakes` experimental feature.
 
@@ -74,3 +74,11 @@ This section lists the differences between upstream Nix 2.29 and Determinate Nix
 * Improve caching of inputs in dry-run mode by @edolstra in [DeterminateSystems/nix-src#98](https://github.com/DeterminateSystems/nix-src/pull/98)
 
 <!-- Determinate Nix version 3.6.6 -->
+
+<!-- Determinate Nix version 3.6.7 -->
+
+* Fix fetchToStore() caching with --impure, improve testing by @edolstra in [DeterminateSystems/nix-src#117](https://github.com/DeterminateSystems/nix-src/pull/117)
+
+* Add lazy-locks setting by @edolstra in [DeterminateSystems/nix-src#113](https://github.com/DeterminateSystems/nix-src/pull/113)
+
+* Sync 2.29.1 by @edolstra in [DeterminateSystems/nix-src#124](https://github.com/DeterminateSystems/nix-src/pull/124)
diff --git a/doc/manual/source/release-notes-determinate/rl-3.6.7.md b/doc/manual/source/release-notes-determinate/rl-3.6.7.md
new file mode 100644
index 000000000..6ce425217
--- /dev/null
+++ b/doc/manual/source/release-notes-determinate/rl-3.6.7.md
@@ -0,0 +1,11 @@
+# Release 3.6.7 (2025-06-24)
+
+* Based on [upstream Nix 2.29.1](../release-notes/rl-2.29.md).
+
+## What's Changed
+* Fix fetchToStore() caching with --impure, improve testing by @edolstra in [DeterminateSystems/nix-src#117](https://github.com/DeterminateSystems/nix-src/pull/117)
+* Add lazy-locks setting by @edolstra in [DeterminateSystems/nix-src#113](https://github.com/DeterminateSystems/nix-src/pull/113)
+* Sync 2.29.1 by @edolstra in [DeterminateSystems/nix-src#124](https://github.com/DeterminateSystems/nix-src/pull/124)
+
+
+**Full Changelog**: [v3.6.6...v3.6.7](https://github.com/DeterminateSystems/nix-src/compare/v3.6.6...v3.6.7)