diff --git a/.codecov.yml b/.codecov.yml
new file mode 100644
index 000000000..d06394ae0
--- /dev/null
+++ b/.codecov.yml
@@ -0,0 +1,7 @@
+coverage:
+  status:
+    project:
+      default:
+        target: auto
+        # Allow a tiny drop of overall project coverage in PR to reduce spurious failures.
+        threshold: 0.25%