diff --git a/ci/environment_py37.yaml b/ci/environment_py37.yaml
deleted file mode 100644
index 451640c..0000000
--- a/ci/environment_py37.yaml
+++ /dev/null
@@ -1,18 +0,0 @@
-name: esm_catalog_utils_ci
-channels:
-  - conda-forge
-dependencies:
-  - black
-  - cftime
-  - dask
-  - flake8
-  - fsspec<2023.3.0
-  - intake
-  - intake-esm
-  - netCDF4
-  - numpy
-  - packaging
-  - pandas
-  - pytest
-  - pyyaml
-  - xarray