diff --git a/docs/releases/v1.0.0.md b/docs/releases/v1.0.0.md
index 2f0f6cc..c2b9923 100644
--- a/docs/releases/v1.0.0.md
+++ b/docs/releases/v1.0.0.md
@@ -131,7 +131,8 @@ remain the behavior references.
 
 ## Requirements and release delivery
 
-The consumer minimum remains Go 1.26.0, and the YAML dependency is unchanged.
+The consumer minimum rises from Go 1.26.0 to Go 1.27.0. Consumers must upgrade
+their Go toolchain before adopting this release. The YAML dependency is unchanged.
 Linux amd64 and arm64 remain the release-validated targets; macOS support remains
 best-effort under the [platform support policy](../policy/release.md#platform-support).
 
diff --git a/go.mod b/go.mod
index 9395b78..d603d19 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module go.maximumdirect.net/configkit
 
-go 1.26.0
+go 1.27.0
 
 require go.yaml.in/yaml/v4 v4.0.0-rc.6