diff --git a/.conda.tensorflow/meta.yaml b/.conda.tensorflow/meta.yaml
index 81818cf..ab82fdd 100644
--- a/.conda.tensorflow/meta.yaml
+++ b/.conda.tensorflow/meta.yaml
@@ -12,7 +12,7 @@ about:
   For GPU support, install cudatoolkit 11.3.1 and cudnn 8.2.1 which are available as conda packages on the default channel.'
 
 build:
-  number: 0
+  number: 1
 
 source:
   path: ../
@@ -24,7 +24,7 @@ requirements:
 
   host:
     - python>=3.10.0,<3.11.0
-    - numpy
+    - numpy<2.0
     - h5py
     - protobuf
     - certifi
@@ -36,7 +36,7 @@ requirements:
 
   run:
     - python>=3.10.0,<3.11.0
-    - numpy
+    - numpy<2.0
     - h5py
     - protobuf
     - certifi
diff --git a/.github/workflows/build_tensorflow.yml b/.github/workflows/build_tensorflow.yml
index 709c93c..2391a3e 100644
--- a/.github/workflows/build_tensorflow.yml
+++ b/.github/workflows/build_tensorflow.yml
@@ -4,6 +4,7 @@ on:
   push:
     branches:
       - main
+      - liezl/pin-numpy-less-than-2.0
 
     paths:
       - ".github/workflows/build_tensorflow.yml"