diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 4d34bf6..6d5df54 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -17,7 +17,7 @@ jobs:
         output: environment_test.yml
         channels: conda-forge defaults
         extras: test
-        setup_requires: include
+        build_system: include
         pip: bidict
     - uses: mamba-org/setup-micromamba@v1.8.0
       with:
diff --git a/README.md b/README.md
index 0448512..8cd04e3 100644
--- a/README.md
+++ b/README.md
@@ -98,9 +98,9 @@ Specify one or more optional `[extras_require]` sections to add to all the envir
 you would normally install with `pip install pkg[test]`).
 Note that for individual packages, the [extra]` syntax is also possible.
 
-### setup_requires:
+### build_system:
 
-If set to `'include'` the dependencies listed under `[options:setup_requires]` will be added to the environment (default
+If set to `'include'` the dependencies listed under `[build-system]` (or `[options:setup_requires]` in `setup.cfg`) will be added to the environment (default
 is `'omit'` so no setup dependencies will be installed).
 
 ### pip
@@ -117,7 +117,7 @@ steps:
       output: 'environment_test.yml'
       channels: 'conda-forge defaults'
       extras: 'test'
-      setup_requires: 'include'
+      build_system: 'include'
       pip: 'bidict'
 ```
 
diff --git a/action.yml b/action.yml
index 03c5cf1..bc54ae5 100644
--- a/action.yml
+++ b/action.yml
@@ -22,9 +22,9 @@ inputs:
       Specify one or more optional [extras_require] sections to add to the environment
       (e.g. 'test' to include package that you would normally install with 'pip install pkg[test]')
     required: false
-  setup_requires:
+  build_system:
     description: >-
-      if set to 'include' the dependencies listed under [options]:setup_requires will be added to the environment
+      if set to 'include' the dependencies listed under [build-system] or [options]:setup_requires will be added to the environment
       (default is 'omit' so no setup dependencies will be installed)
     required: false
     default: omit
@@ -43,7 +43,7 @@ runs:
       --output ${{ inputs.output }}
       --channels ${{ inputs.channels }}
       --extras ${{ inputs.extras }}
-      --setup_requires ${{ inputs.setup_requires }}
+      --build_system ${{ inputs.build_system }}
       --pip ${{ inputs.pip }}
     shell: bash
   - name: show environment file