diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index d4d879c7..cb8fdd14 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -62,6 +62,14 @@ jobs:
           # TODO: put back zfpy import when it supports numpy 2.0
           python -m pip install -v -e .[test,test_extras,msgpack,pcodec]
 
+      # This is used to test with zfpy, which does not yet support numpy 2.0
+      - name: Install older numpy and zfpy
+        if: ${{ matrix.python-version }} == '3.10'
+        shell: "bash -l {0}"
+        run: |
+            conda activate env
+            python -m pip install zfpy>1 numpy<2
+
       - name: List installed packages
         shell: "bash -l {0}"
         run: |