diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 263ad5db7..bf11b8bab 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -65,6 +65,8 @@ jobs:
         export LD_LIBRARY_PATH=${HOME}/dependencies/lib:$LD_LIBRARY_PATH
         export TA_LIBRARY_PATH=${HOME}/dependencies/lib
         export TA_INCLUDE_PATH=${HOME}/dependencies/include
+        echo "numpy<2.3.0" > constraints.txt
+        export PIP_CONSTRAINTS=${HOME}/constraints.txt
         uv pip install -r requirements-dev.txt
         uv pip install -e ft_client/
         uv pip install -e .
@@ -228,6 +230,8 @@ jobs:
         export LD_LIBRARY_PATH=${HOME}/dependencies/lib:$LD_LIBRARY_PATH
         export TA_LIBRARY_PATH=${HOME}/dependencies/lib
         export TA_INCLUDE_PATH=${HOME}/dependencies/include
+        echo "numpy<2.3.0" > constraints.txt
+        export PIP_CONSTRAINTS=${HOME}/constraints.txt
         uv pip install -r requirements-dev.txt
         uv pip install -e ft_client/
         uv pip install -e .