diff --git a/.ci_support/environment.yml b/.ci_support/environment.yml
index 6a53cd393..599783f4f 100644
--- a/.ci_support/environment.yml
+++ b/.ci_support/environment.yml
@@ -18,5 +18,5 @@ dependencies:
 - scipy =1.16.3
 - spglib =2.6.0
 - sqsgenerator =0.3
-- hatchling =1.28.0
+- hatchling =1.27.0
 - hatch-vcs =0.5.0
diff --git a/.ci_support/environment_mini.yml b/.ci_support/environment_mini.yml
index 031c0142d..cfe7cfe15 100644
--- a/.ci_support/environment_mini.yml
+++ b/.ci_support/environment_mini.yml
@@ -5,5 +5,5 @@ dependencies:
 - coverage
 - numpy =2.3.5
 - scipy =1.16.3
-- hatchling =1.28.0
+- hatchling =1.27.0
 - hatch-vcs =0.5.0
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index f26255730..20f6b440c 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,6 +1,6 @@
 repos:
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.14.6
+    rev: v0.14.7
     hooks:
       - id: ruff
         name: ruff lint
diff --git a/pyproject.toml b/pyproject.toml
index f13dd26d0..d5cd6b2ca 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,5 +1,5 @@
 [build-system]
-requires = ["ase", "numpy", "scipy", "hatchling==1.28.0", "hatch-vcs==0.5.0"]
+requires = ["ase", "numpy", "scipy", "hatchling==1.27.0", "hatch-vcs==0.5.0"]
 build-backend = "hatchling.build"
 
 [project]