diff --git a/ci/requirements/tensorflow.txt b/ci/requirements/tensorflow.txt
index b839d5f..feeb8b0 100644
--- a/ci/requirements/tensorflow.txt
+++ b/ci/requirements/tensorflow.txt
@@ -1,7 +1,7 @@
 coverage
 matplotlib
 networkx
-numpy
+numpy<2
 opt_einsum
 pytest
 pytest-cov