SciTools · pp-mo · Nov 28, 2023 · Nov 27, 2023 · Nov 27, 2023
diff --git a/docs/src/whatsnew/latest.rst b/docs/src/whatsnew/latest.rst
@@ -155,6 +155,9 @@ This document explains the changes made to Iris for this release
 #. `@bjlittle`_ corrected various comment spelling mistakes detected by
    `codespell`_. (:pull:`5546`)
 
+#. `@rcomer`_ reduced the size of the conda environment used for testing.
+   (:pull:`5606`)
+
 
 .. comment
     Whatsnew author names (@github name) in alphabetical order. Note that,

diff --git a/requirements/locks/py310-linux-64.lock b/requirements/locks/py310-linux-64.lock
diff --git a/requirements/locks/py311-linux-64.lock b/requirements/locks/py311-linux-64.lock
diff --git a/requirements/locks/py39-linux-64.lock b/requirements/locks/py39-linux-64.lock
diff --git a/requirements/py310.yml b/requirements/py310.yml
@@ -16,7 +16,7 @@ dependencies:
   - cftime >=1.5
   - dask-core >=2022.9.0
   - libnetcdf !=4.9.1
-  - matplotlib >=3.5
+  - matplotlib-base >=3.5
   - netcdf4
   - numpy >1.21, !=1.24.3
   - python-xxhash

diff --git a/requirements/py311.yml b/requirements/py311.yml
@@ -16,7 +16,7 @@ dependencies:
   - cftime >=1.5
   - dask-core >=2022.9.0
   - libnetcdf !=4.9.1
-  - matplotlib >=3.5
+  - matplotlib-base >=3.5
   - netcdf4
   - numpy >1.21, !=1.24.3
   - python-xxhash

diff --git a/requirements/py39.yml b/requirements/py39.yml
@@ -16,7 +16,7 @@ dependencies:
   - cftime >=1.5
   - dask-core >=2022.9.0
   - libnetcdf !=4.9.1
-  - matplotlib >=3.5
+  - matplotlib-base >=3.5
   - netcdf4
   - numpy >1.21, !=1.24.3
   - python-xxhash