diff --git a/environment.yml b/environment.yml
index 6405b6ca57..8796a8fa4e 100644
--- a/environment.yml
+++ b/environment.yml
@@ -21,6 +21,7 @@ dependencies:
   - importlib_metadata  # required for Python < 3.10
   - iris >=3.9.0
   - iris-esmf-regrid >=0.10.0  # github.com/SciTools-incubator/iris-esmf-regrid/pull/342
+  - iris-grib
   - isodate
   - jinja2
   - libnetcdf !=4.9.1  # to avoid hdf5 warnings
diff --git a/setup.py b/setup.py
index 9438202769..d1d6e49b55 100755
--- a/setup.py
+++ b/setup.py
@@ -40,6 +40,7 @@
         'geopy',
         'humanfriendly',
         "importlib_metadata;python_version<'3.10'",
+        'iris-grib',
         'isodate',
         'jinja2',
         'nc-time-axis',  # needed by iris.plot