diff --git a/.github/ios.yml b/.github/workflows/ios.yml
similarity index 90%
rename from .github/ios.yml
rename to .github/workflows/ios.yml
index 4be998a8..09974db4 100644
--- a/.github/ios.yml
+++ b/.github/workflows/ios.yml
@@ -7,12 +7,12 @@ on:
 
 jobs:
   build:
-    runs-on: macos-11
+    runs-on: macos-10.15
     timeout-minutes: 30
     steps:
       - uses: actions/checkout@v1
       - name: Install gpg
-        run: brew install git-crypt md5sha1sum
+        run: brew install git-crypt md5sha1sum gnu-sed
       - name: Unlock Secrets
         env:
           GITCRYPT_KEY: ${{ secrets.GITCRYPT_KEY }}