diff --git a/envs/conda-forge.yml b/envs/conda-forge.yml
index 8216ad61ef..c203a00794 100644
--- a/envs/conda-forge.yml
+++ b/envs/conda-forge.yml
@@ -28,3 +28,6 @@ dependencies:
   - sphinx-autodoc-typehints
   - sphinx_rtd_theme
   - threadpoolctl
+  # Pinned dependencies of dependencies
+  - pillow<=10.0.1  # https://github.com/metoppv/improver/issues/2010
+  - pandas<=2.0.0  # https://github.com/metoppv/improver/issues/2010