diff --git a/src/poetry/packages/locker.py b/src/poetry/packages/locker.py
index 46eae599982..14972eb2172 100644
--- a/src/poetry/packages/locker.py
+++ b/src/poetry/packages/locker.py
@@ -472,7 +472,7 @@ def _get_lock_data(self) -> TOMLDocument:
     def _lock_packages(self, packages: list[Package]) -> list:
         locked = []
 
-        for package in sorted(packages, key=lambda x: x.name):
+        for package in sorted(packages, key=lambda x: (x.name, x.version)):
             spec = self._dump_package(package)
 
             locked.append(spec)
diff --git a/tests/packages/test_locker.py b/tests/packages/test_locker.py
index 61213c59e26..4b6fd224b6a 100644
--- a/tests/packages/test_locker.py
+++ b/tests/packages/test_locker.py
@@ -42,6 +42,8 @@ def test_lock_file_data_is_ordered(locker: Locker, root: ProjectPackage):
     package_a = get_package("A", "1.0.0")
     package_a.add_dependency(Factory.create_dependency("B", "^1.0"))
     package_a.files = [{"file": "foo", "hash": "456"}, {"file": "bar", "hash": "123"}]
+    package_a2 = get_package("A", "2.0.0")
+    package_a2.files = [{"file": "baz", "hash": "345"}]
     package_git = Package(
         "git-package",
         "1.2.3",
@@ -50,14 +52,15 @@ def test_lock_file_data_is_ordered(locker: Locker, root: ProjectPackage):
         source_reference="develop",
         source_resolved_reference="123456",
     )
-    packages = [package_a, get_package("B", "1.2"), package_git]
+    packages = [package_a2, package_a, get_package("B", "1.2"), package_git]
 
     locker.set_lock_data(root, packages)
 
     with locker.lock.open(encoding="utf-8") as f:
         content = f.read()
 
-    expected = """[[package]]
+    expected = """\
+[[package]]
 name = "A"
 version = "1.0.0"
 description = ""
@@ -68,6 +71,14 @@ def test_lock_file_data_is_ordered(locker: Locker, root: ProjectPackage):
 [package.dependencies]
 B = "^1.0"
 
+[[package]]
+name = "A"
+version = "2.0.0"
+description = ""
+category = "main"
+optional = false
+python-versions = "*"
+
 [[package]]
 name = "B"
 version = "1.2"
@@ -100,6 +111,7 @@ def test_lock_file_data_is_ordered(locker: Locker, root: ProjectPackage):
 A = [
     {file = "bar", hash = "123"},
     {file = "foo", hash = "456"},
+    {file = "baz", hash = "345"},
 ]
 B = []
 git-package = []