diff --git a/poetry.lock b/poetry.lock
index 8f06576e67a..70b8d771525 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1050,9 +1050,9 @@ develop = false
 
 [package.source]
 type = "git"
-url = "https://github.com/python-poetry/poetry-core.git"
-reference = "HEAD"
-resolved_reference = "b1505c6eef8160ffe4ead25c7bff81317947da1a"
+url = "https://github.com/radoering/poetry-core.git"
+reference = "perf-marker-intersection"
+resolved_reference = "f00b7cb33e4a5000e15666cc2e868acbae674e22"
 
 [[package]]
 name = "pre-commit"
@@ -1739,4 +1739,4 @@ type = ["pytest-mypy"]
 [metadata]
 lock-version = "2.1"
 python-versions = ">=3.9,<4.0"
-content-hash = "e12eda5cc53996f463234f41ff013a8b0aa972ffbcbe210197327660d88b0af1"
+content-hash = "b3ea8279acd55cf7472e281155f8732748102afd60fee08a2a48fdee059b1b10"
diff --git a/pyproject.toml b/pyproject.toml
index f86eee304d6..554f999c1b1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ version = "2.0.1"
 description = "Python dependency management and packaging made easy."
 requires-python = ">=3.9,<4.0"
 dependencies = [
-    "poetry-core @ git+https://github.com/python-poetry/poetry-core.git",
+    "poetry-core @ git+https://github.com/radoering/poetry-core.git@perf-marker-intersection",
     "build (>=1.2.1,<2.0.0)",
     "cachecontrol[filecache] (>=0.14.0,<0.15.0)",
     "cleo (>=2.1.0,<3.0.0)",
diff --git a/tests/puzzle/test_solver.py b/tests/puzzle/test_solver.py
index 6d791baed5d..205972a8848 100644
--- a/tests/puzzle/test_solver.py
+++ b/tests/puzzle/test_solver.py
@@ -2027,42 +2027,29 @@ def test_solver_duplicate_dependencies_with_overlapping_markers_complex(
                 ' and platform_machine == "arm64" or python_version >= "3.10"'
             ),
             (
-                'numpy (>=1.19.3) ; python_version >= "3.9" and python_version < "3.10"'
-                ' and platform_system != "Darwin" or python_version >= "3.9"'
-                ' and python_version < "3.10" and platform_machine != "arm64"'
-                ' or platform_system == "Linux" and python_version < "3.10"'
-                ' and platform_machine == "aarch64" and python_version >= "3.6"'
+                'numpy (>=1.19.3) ; python_version >= "3.6"'
+                ' and (platform_system == "Linux" or python_version >= "3.9")'
+                ' and python_version < "3.10"'
+                ' and (platform_system != "Darwin" or platform_machine != "arm64")'
+                ' and (platform_machine == "aarch64" or python_version >= "3.9")'
             ),
             (
                 'numpy (>=1.17.3) ; python_version < "3.9"'
-                ' and platform_system != "Darwin" and platform_system != "Linux"'
-                ' and python_version >= "3.8" or python_version < "3.9"'
-                ' and platform_system != "Darwin" and python_version >= "3.8"'
-                ' and platform_machine != "aarch64" or python_version < "3.9"'
-                ' and platform_machine != "arm64" and python_version >= "3.8"'
-                ' and platform_system != "Linux" or python_version < "3.9"'
-                ' and platform_machine != "arm64" and platform_machine != "aarch64"'
+                ' and (platform_system != "Darwin" or platform_machine != "arm64")'
                 ' and python_version >= "3.8"'
+                ' and (platform_system != "Linux" or platform_machine != "aarch64")'
             ),
             (
                 'numpy (>=1.14.5) ; python_version < "3.8"'
-                ' and platform_system != "Darwin" and platform_system != "Linux"'
-                ' and python_version >= "3.7" or python_version < "3.8"'
-                ' and platform_system != "Darwin" and python_version >= "3.7"'
-                ' and platform_machine != "aarch64" or python_version < "3.8"'
-                ' and platform_machine != "arm64" and python_version >= "3.7"'
-                ' and platform_system != "Linux" or python_version < "3.8"'
-                ' and platform_machine != "arm64" and platform_machine != "aarch64"'
+                ' and (platform_system != "Darwin" or platform_machine != "arm64")'
                 ' and python_version >= "3.7"'
+                ' and (platform_system != "Linux" or platform_machine != "aarch64")'
             ),
             (
-                'numpy (>=1.13.3) ; python_version < "3.6" or python_version < "3.7"'
-                ' and platform_system != "Darwin" and platform_system != "Linux"'
-                ' or python_version < "3.7" and platform_system != "Darwin"'
-                ' and platform_machine != "aarch64" or python_version < "3.7"'
-                ' and platform_machine != "arm64" and platform_system != "Linux"'
-                ' or python_version < "3.7" and platform_machine != "arm64"'
-                ' and platform_machine != "aarch64"'
+                'numpy (>=1.13.3) ; python_version < "3.7"'
+                ' and (python_version < "3.6" or platform_system != "Darwin"'
+                ' or platform_machine != "arm64") and (python_version < "3.6"'
+                ' or platform_system != "Linux" or platform_machine != "aarch64")'
             ),
         },
     )