diff --git a/test-data/packages/typedpkg-stubs/pyproject.toml b/test-data/packages/typedpkg-stubs/pyproject.toml
index 125816151ef8..c984c5d91e0a 100644
--- a/test-data/packages/typedpkg-stubs/pyproject.toml
+++ b/test-data/packages/typedpkg-stubs/pyproject.toml
@@ -7,5 +7,5 @@ description = 'test'
 include = ["**/*.pyi"]
 
 [build-system]
-requires = ["hatchling"]
+requires = ["hatchling==1.18"]
 build-backend = "hatchling.build"
diff --git a/test-data/packages/typedpkg/pyproject.toml b/test-data/packages/typedpkg/pyproject.toml
index 5269c94320e1..6b55d4b3df60 100644
--- a/test-data/packages/typedpkg/pyproject.toml
+++ b/test-data/packages/typedpkg/pyproject.toml
@@ -4,5 +4,5 @@ version = '0.1'
 description = 'test'
 
 [build-system]
-requires = ["hatchling"]
+requires = ["hatchling==1.18"]
 build-backend = "hatchling.build"
diff --git a/test-data/packages/typedpkg_ns_a/pyproject.toml b/test-data/packages/typedpkg_ns_a/pyproject.toml
index cc464af75b17..f41ad16b5bc2 100644
--- a/test-data/packages/typedpkg_ns_a/pyproject.toml
+++ b/test-data/packages/typedpkg_ns_a/pyproject.toml
@@ -7,5 +7,5 @@ description = 'test'
 include = ["**/*.py", "**/*.pyi", "**/py.typed"]
 
 [build-system]
-requires = ["hatchling"]
+requires = ["hatchling==1.18"]
 build-backend = "hatchling.build"
diff --git a/test-data/packages/typedpkg_ns_b-stubs/pyproject.toml b/test-data/packages/typedpkg_ns_b-stubs/pyproject.toml
index d5275d1ed8b3..2c1c206c361d 100644
--- a/test-data/packages/typedpkg_ns_b-stubs/pyproject.toml
+++ b/test-data/packages/typedpkg_ns_b-stubs/pyproject.toml
@@ -7,5 +7,5 @@ description = 'test'
 include = ["**/*.pyi"]
 
 [build-system]
-requires = ["hatchling"]
+requires = ["hatchling==1.18"]
 build-backend = "hatchling.build"
diff --git a/test-data/packages/typedpkg_ns_b/pyproject.toml b/test-data/packages/typedpkg_ns_b/pyproject.toml
index 8567af11152e..b8ae0d59072e 100644
--- a/test-data/packages/typedpkg_ns_b/pyproject.toml
+++ b/test-data/packages/typedpkg_ns_b/pyproject.toml
@@ -4,5 +4,5 @@ version = '0.1'
 description = 'test'
 
 [build-system]
-requires = ["hatchling"]
+requires = ["hatchling==1.18"]
 build-backend = "hatchling.build"