diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index f3b3372..6f85533 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -11,7 +11,7 @@ jobs:
   default:
     strategy:
       matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest, macos-14]
+        os: [ubuntu-latest, macos-latest, windows-latest, macos-13]
         cache: [true, false]
     runs-on: ${{ matrix.os }}
     name: default ${{ matrix.cache == true && 'with' || 'without' }} cache (${{ matrix.os }})
@@ -76,7 +76,7 @@ jobs:
   custom-pixi-version:
     strategy:
       matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest, macos-14]
+        os: [ubuntu-latest, macos-latest, windows-latest, macos-13]
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v4
@@ -113,7 +113,7 @@ jobs:
   install-path:
     strategy:
       matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest, macos-14]
+        os: [ubuntu-latest, macos-latest, windows-latest, macos-13]
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v4
@@ -126,7 +126,7 @@ jobs:
   global-install:
     strategy:
       matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest, macos-14]
+        os: [ubuntu-latest, macos-latest, windows-latest, macos-13]
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v4
@@ -579,7 +579,7 @@ jobs:
     name: multiple-environments (${{ matrix.os }}, cache=${{ matrix.cache }})
     strategy:
       matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest, macos-14]
+        os: [ubuntu-latest, macos-latest, windows-latest, macos-13]
         cache: ['true', 'false']
     runs-on: ${{ matrix.os }}
     steps:
@@ -617,7 +617,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [windows-latest, ubuntu-latest, macos-latest, macos-14]
+        os: [windows-latest, ubuntu-latest, macos-latest, macos-13]
     steps:
       - uses: actions/checkout@v4
       - name: Move pixi files
@@ -633,7 +633,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [windows-latest, ubuntu-latest, macos-latest, macos-14]
+        os: [windows-latest, ubuntu-latest, macos-latest, macos-13]
     steps:
       - uses: actions/checkout@v4
       - name: Move pixi files
@@ -658,7 +658,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [windows-latest, ubuntu-latest, macos-latest, macos-14]
+        os: [windows-latest, ubuntu-latest, macos-latest, macos-13]
     steps:
       - uses: actions/checkout@v4
       - name: Move pixi files
@@ -682,7 +682,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [windows-latest, ubuntu-latest, macos-latest, macos-14]
+        os: [windows-latest, ubuntu-latest, macos-latest, macos-13]
     steps:
       - uses: actions/checkout@v4
       - name: Move pixi files
diff --git a/README.md b/README.md
index 8ce013c..20f581d 100644
--- a/README.md
+++ b/README.md
@@ -25,7 +25,7 @@ GitHub Action to set up the [pixi](https://github.com/prefix-dev/pixi) package m
 ```yml
 - uses: prefix-dev/setup-pixi@v0.6.0
   with:
-    pixi-version: v0.20.1
+    pixi-version: v0.21.1
     cache: true
     auth-host: prefix.dev
     auth-token: ${{ secrets.PREFIX_DEV_TOKEN }}
diff --git a/test/no-lockfile/pixi.toml b/test/no-lockfile/pixi.toml
index 82e35d5..a39ceaa 100644
--- a/test/no-lockfile/pixi.toml
+++ b/test/no-lockfile/pixi.toml
@@ -4,7 +4,7 @@ version = "0.1.0"
 description = "Add a short description here"
 authors = ["Pavel Zwerschke <pavelzw@gmail.com>"]
 channels = ["conda-forge"]
-platforms = ["linux-64", "osx-64", "win-64"]
+platforms = ["linux-64", "osx-64", "osx-arm64", "win-64"]
 
 [tasks]
 test = "python -c 'print(\"Hello world!\")'"