diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 08d53be..852570f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,19 +23,14 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - name: Linux, Python 3.7
-            os: ubuntu-latest
-            python-version: "3.7"
-            conda-installer: https://github.com/conda-forge/miniforge/releases/latest/download/Mambaforge-Linux-x86_64.sh
-
           - name: Linux, Python 3.9
             os: ubuntu-latest
             python-version: "3.9"
             conda-installer: https://github.com/conda-forge/miniforge/releases/latest/download/Mambaforge-Linux-x86_64.sh
 
-          - name: MacOS, Python 3.7
+          - name: MacOS, Python 3.9
             os: macOS-latest
-            python-version: "3.7"
+            python-version: "3.9"
             conda-installer: https://github.com/conda-forge/miniforge/releases/latest/download/Mambaforge-MacOSX-x86_64.sh
 
     steps:
@@ -88,7 +83,7 @@ jobs:
       - uses: conda-incubator/setup-miniconda@v2
         with:
           installer-url: https://github.com/conda-forge/miniforge/releases/latest/download/Mambaforge-Linux-x86_64.sh
-          python-version: "3.7"
+          python-version: "3.9"
           activate-environment: test
           channel-priority: true
           environment-file: devtools/conda-envs/env.yaml