diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 63c1b04..371ddcb 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -7,6 +7,8 @@ on:
       - "master"
   schedule:
     - cron: "0 16 * * 1" # 8am PST every Monday
+env:
+  CMAKE_POLICY_VERSION_MINIMUM: 3.5
 jobs:
   lint:
     name: Lints