diff --git a/map_machine/__init__.py b/map_machine/__init__.py
index 7a85ff9..c733660 100644
--- a/map_machine/__init__.py
+++ b/map_machine/__init__.py
@@ -12,3 +12,18 @@ __doc_url__ = f"{__url__}/blob/main/README.md"
 __author__ = "Sergey Vartanov"
 __email__ = "me@enzet.ru"
 __version__ = "0.1.3"
+
+REQUIREMENTS: list[str] = [
+    "CairoSVG>=2.5.0",
+    "colour>=0.1.5",
+    "numpy>=1.18.1",
+    "Pillow>=8.2.0",
+    "portolan>=1.0.1",
+    "pycairo",
+    "pytest>=6.2.2",
+    "PyYAML>=4.2b1",
+    "setuptools>=51.0.0",
+    "Shapely>=1.7.1",
+    "svgwrite>=1.4",
+    "urllib3>=1.25.6",
+]
diff --git a/requirements.txt b/requirements.txt
index a24547f..8d891b4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,12 +1,12 @@
 CairoSVG>=2.5.0
-colour~=0.1.5
+colour>=0.1.5
 numpy>=1.18.1
 Pillow>=8.2.0
-portolan~=1.0.1
+portolan>=1.0.1
 pycairo
-pytest~=6.2.2
+pytest>=6.2.2
 PyYAML>=4.2b1
 setuptools>=51.0.0
 Shapely>=1.7.1
-svgwrite~=1.4
+svgwrite>=1.4
 urllib3>=1.25.6
diff --git a/setup.py b/setup.py
index 699f3e0..991ffdd 100644
--- a/setup.py
+++ b/setup.py
@@ -11,6 +11,7 @@ from map_machine import (
     __email__,
     __url__,
     __version__,
+    REQUIREMENTS,
 )
 
 with Path("README.md").open() as input_file:
@@ -50,16 +51,5 @@ setup(
         ],
     },
     python_requires=">=3.9",
-    install_requires=[
-        "CairoSVG>=2.5.0",
-        "colour>=0.1.5",
-        "numpy>=1.18.1",
-        "Pillow>=8.2.0",
-        "portolan>=1.0.1",
-        "pycairo",
-        "pytest>=6.2.2",
-        "PyYAML>=4.2b1",
-        "svgwrite>=1.4",
-        "urllib3>=1.25.6",
-    ],
+    install_requires=REQUIREMENTS,
 )
diff --git a/tests/test_requirements.py b/tests/test_requirements.py
new file mode 100644
index 0000000..8e1c5df
--- /dev/null
+++ b/tests/test_requirements.py
@@ -0,0 +1,12 @@
+from map_machine import REQUIREMENTS
+from pathlib import Path
+
+
+def test_requirements() -> None:
+    requirements: list[str]
+    with Path("requirements.txt").open() as requirements_file:
+        requirements = list(
+            map(lambda x: x[:-1], requirements_file.readlines())
+        )
+
+    assert requirements == REQUIREMENTS