From 9186dfba06160b889a0550d23e0da100be875356 Mon Sep 17 00:00:00 2001
From: Oliver Sanders <oliver.sanders@metoffice.gov.uk>
Date: Mon, 6 Jan 2025 17:55:18 +0000
Subject: [PATCH] .

---
 .github/actions/create-conda-envs/action.yml | 10 +++-------
 .github/workflows/create-conda-envs.yml      |  2 +-
 2 files changed, 4 insertions(+), 8 deletions(-)

diff --git a/.github/actions/create-conda-envs/action.yml b/.github/actions/create-conda-envs/action.yml
index 56eb58db44d..99f1527cd71 100644
--- a/.github/actions/create-conda-envs/action.yml
+++ b/.github/actions/create-conda-envs/action.yml
@@ -29,14 +29,10 @@ runs:
         fi
         echo "CYLC_RELEASE=$CYLC_RELEASE" >> "${GITHUB_ENV}"
 
-    - shell: bash
-      working-directory: ${{ inputs.working_directory }}
-      run: |
-        # use mamba (much faster)
-        # use this when released: https://github.com/mamba-org/setup-mamba
-        conda install -n base -c conda-forge -y mamba
+    - name: build conda env
+      uses: conda-incubator/setup-miniconda@v3
 
-    - shell: bash
+    - shell: bash -el {0}
       working-directory: ${{ inputs.working_directory }}
       run: |
         for env_file in $(echo src/reference/environments/envs/*.yml); do
diff --git a/.github/workflows/create-conda-envs.yml b/.github/workflows/create-conda-envs.yml
index 42ce7171ff7..e9197bd1360 100644
--- a/.github/workflows/create-conda-envs.yml
+++ b/.github/workflows/create-conda-envs.yml
@@ -24,7 +24,7 @@ jobs:
     timeout-minutes: 30
     strategy:
       matrix:
-        python: [3.7, 3.8, 3.9]
+        python: [3.8, 3.9]
     steps:
       - name: checkout cylc-doc
         uses: actions/checkout@v4