diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 37d0e94a5..c7cb09a7c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -19,7 +19,7 @@ jobs:
         version:
           - '1.9' # Replace this with the minimum Julia version that your package supports. E.g. if your package requires Julia 1.5 or higher, change this to '1.5'.
           - '1' # Leave this line unchanged. '1' will automatically expand to the latest stable 1.x release of Julia.
-        os: [ubuntu-latest, windows-latest, macos-latest]
+        os: [ubuntu-latest, windows-latest, macos-12] # macos-latest]
         arch: [x64]
         include:
           - os: ubuntu-latest
diff --git a/README.md b/README.md
index 0faa4b54e..1427e937b 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,7 @@
 
 </div>
  
-KomaMRI.jl is a Julia package for highly efficient ⚡ MRI simulations. KomaMRI was built from the ground up to be: easy to use, extensible, cross-platform, and powered by open-source community standards. 
+KomaMRI.jl is a Julia package for highly efficient ⚡ MRI simulations. KomaMRI was built from the ground up to be: easy to use, extensible, cross-platform, and powered by open-source community standards.
 
 <div align="center">