diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 79967b7..0a1415c 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -2,10 +2,13 @@ version: 2
 updates:
 - package-ecosystem: pip
   directory: "/"
+  exclude-paths:
+      - "requirements-dev.txt"
+      - "setup.py"
   schedule:
     interval: weekly
     time: "01:30"
-  open-pull-requests-limit: 10
+  open-pull-requests-limit: 5
   target-branch: dev
   assignees:
       - "sepandhaghighi"
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index f940d10..3c97dce 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -36,10 +36,9 @@ jobs:
         run: |
           python -m pip install --upgrade pip
           pip install .
-      - name: Test requirements installation
+      - name: Dev requirements installation
         run: |
-          python otherfiles/requirements-splitter.py
-          pip install --upgrade --upgrade-strategy=only-if-needed -r test-requirements.txt
+          pip install --upgrade --upgrade-strategy=only-if-needed -r requirements-dev.txt
       - name: Conflict check
         run: |
           python otherfiles/conflict_check.py
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2e50705..e1636cb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ### Changed
 - `README.md` updated
 - Test system modified
+- Dependencies structure modified
 ## [1.5] - 2026-04-10
 ### Added
 - Garay numeral system
diff --git a/dev-requirements.txt b/requirements-dev.txt
similarity index 100%
rename from dev-requirements.txt
rename to requirements-dev.txt
diff --git a/requirements.txt b/requirements.txt
deleted file mode 100644
index e69de29..0000000
diff --git a/setup.py b/setup.py
index 0e1f436..25b6a86 100644
--- a/setup.py
+++ b/setup.py
@@ -5,13 +5,6 @@
 except ImportError:
     from distutils.core import setup
 
-
-def get_requires() -> list:
-    """Read requirements.txt."""
-    requirements = open("requirements.txt", "r").read()
-    return list(filter(lambda x: x != "", requirements.split()))
-
-
 def read_description() -> str:
     """Read README.md and CHANGELOG.md."""
     try:
@@ -32,8 +25,7 @@ def read_description() -> str:
 
 setup(
     name='xnum',
-    packages=[
-        'xnum', ],
+    packages=['xnum'],
     version='1.5',
     description='XNum: Universal Numeral System Converter',
     long_description=read_description(),
@@ -42,11 +34,11 @@ def read_description() -> str:
     author_email='xnum@openscilab.com',
     url='https://github.com/openscilab/xnum',
     download_url='https://github.com/openscilab/xnum/tarball/v1.5',
-    keywords="convert numeral number numeral-system digits",
+    keywords='convert numeral number numeral-system digits',
     project_urls={
             'Source': 'https://github.com/openscilab/xnum',
     },
-    install_requires=get_requires(),
+    install_requires=[],
     python_requires='>=3.7',
     classifiers=[
         'Development Status :: 5 - Production/Stable',