diff --git a/requirements.txt b/requirements.txt
index e0ec63a..006c948 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
-numpy>=1.21.6
+numpy>=1.21.6,<2.0.0  # Avoids binary incompatibility error.
 open3d>=0.15.2
-PyOpenGL==3.1.6  # prevents 'NoneType' object has no attribute 'glGetError'
+PyOpenGL==3.1.6  # Prevents 'NoneType' object has no attribute 'glGetError'.
 PyOpenGL-accelerate~=3.1.5
 PyQt5~=5.15.7
 
@@ -12,5 +12,4 @@ pytest-qt~=4.2.0
 black>=23.1.0
 mypy~=1.3.0
 PyQt5-stubs~=5.15.6
-types-setuptools~=67.8.0
-types-pkg-resources~=0.1.3
+types-setuptools~=71.1.0
\ No newline at end of file
diff --git a/setup.cfg b/setup.cfg
index 5425b3a..0268265 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -51,7 +51,7 @@ packages =
     labelCloud.view
     labelCloud.view.startup
 install_requires =
-    numpy>1.20.0
+    numpy>1.20.0,<2.0.0
     open3d
     PyOpenGL
     PyOpenGL-accelerate