diff --git a/.github/workflows/package.yml b/.github/workflows/package.yml
index e43c94a5d..3990566aa 100644
--- a/.github/workflows/package.yml
+++ b/.github/workflows/package.yml
@@ -23,7 +23,7 @@ on:
 
 jobs:
   package-macos:
-    runs-on: macos-latest
+    runs-on: macos-10.15
     env:
       DISCID_VERSION: 0.6.2
       FPCALC_VERSION: 1.5.0
@@ -77,7 +77,7 @@ jobs:
         path: artifacts/
 
   package-windows:
-    runs-on: windows-latest
+    runs-on: windows-2019
     strategy:
       matrix:
         type: