diff --git a/requirements/_requirements_base.txt b/requirements/_requirements_base.txt
index f446422..4054ee3 100644
--- a/requirements/_requirements_base.txt
+++ b/requirements/_requirements_base.txt
@@ -1,12 +1,14 @@
 tqdm>=4.64
 psutil>=5.9.0
-numexpr>=2.8.3
+numexpr>=2.7.3; python_version < '3.9'  # >=2.8.0 conflicts in Conda
+numexpr>=2.8.3; python_version >= '3.9'
 opencv-python>=4.6.0.0
 pillow>=9.2.0
 scikit-learn==1.0.2; python_version < '3.9'  # AMD needs version 1.0.2 and 1.1.0 not available in Python 3.7
 scikit-learn>=1.1.0; python_version >= '3.9'
 fastcluster>=1.2.6
-matplotlib>=3.5.1,<3.6.0
+matplotlib>=3.4.3,<3.6.0; python_version < '3.9'  # >=3.5.0 conflicts in Conda
+matplotlib>=3.5.1,<3.6.0; python_version >= '3.9'
 imageio>=2.19.3
 imageio-ffmpeg>=0.4.7
 ffmpy>=0.3.0
diff --git a/requirements/requirements_amd.txt b/requirements/requirements_amd.txt
index b235e2c..87c2844 100644
--- a/requirements/requirements_amd.txt
+++ b/requirements/requirements_amd.txt
@@ -1,6 +1,6 @@
 -r _requirements_base.txt
 # tf2.2 is last version that tensorboard logging works with old Keras
-numpy>=1.18.0,<1.20.0
+numpy>=1.18.0,<1.19.0  # TF Will uninstall anything equal or over 1.19.0
 protobuf>= 3.19.0,<3.20.0  # TF has started pulling in incompatible protobuf
 tensorflow>=2.2.0,<2.3.0
 plaidml-keras==0.7.0