diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 5c3fcb3..d0b2044 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -20,7 +20,7 @@ env:
 jobs:
   build-arm64:
     # Requires a self-hosted arm64 runner
-    runs-on: [self-hosted, ARM64]
+    runs-on: [self-hosted, arm64]
     timeout-minutes: 240
     permissions:
       contents: read
@@ -81,7 +81,7 @@ jobs:
 
   build-amd64:
     # Requires a self-hosted amd64 runner
-    runs-on: [self-hosted, X64]
+    runs-on: [self-hosted, x64]
     timeout-minutes: 240
     permissions:
       contents: read