diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 63766d2c..bce6660e 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -109,7 +109,7 @@ jobs:
         path: dist
 
   build-freebsd:
-    runs-on: macos-10.15
+    runs-on: macos-latest
     timeout-minutes: 30
     strategy:
       matrix:
diff --git a/ci/Vagrantfile b/ci/Vagrantfile
index cdb30d3c..d88c4ba1 100644
--- a/ci/Vagrantfile
+++ b/ci/Vagrantfile
@@ -10,7 +10,7 @@ Vagrant.configure("2") do |config|
     rsync__exclude: [".git", ".vagrant.d"]
 
   config.vm.provision "shell", inline: <<~SHELL
-    pkg install -y python devel/llvm90
+    pkg install -y python devel/llvm11
   SHELL
 
   config.vm.provider "virtualbox" do |v|