diff --git a/.github/workflows/fpm.yml b/.github/workflows/fpm.yml
index bd41cec..da20d64 100644
--- a/.github/workflows/fpm.yml
+++ b/.github/workflows/fpm.yml
@@ -8,8 +8,8 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, macos-latest]
-        gcc_v: [12] # Version of GFortran we want to use.
+        os: [ubuntu-latest, macos-11]
+        gcc_v: [11] # Version of GFortran we want to use.
         include:
         - os: ubuntu-latest
           os-arch: linux-x86_64