diff --git a/.codecov.yaml b/.codecov.yaml
index f3e0f1d9..6b214cca 100644
--- a/.codecov.yaml
+++ b/.codecov.yaml
@@ -1,3 +1,4 @@
+# Config can be validated before merging: curl -X POST --data-binary @codecov.yaml https://codecov.io/validate
 # See http://docs.codecov.io/docs/coverage-configuration
 coverage:
   precision: 2 # 2 = xx.xx%, 0 = xx%
@@ -11,7 +12,10 @@ coverage:
   status:
     # project will give us the diff in the total code coverage between a commit
     # and its parent
-    project: yes
+    project:
+      default:
+        # Allow the coverage to drop by 1% and posting a success status.
+        threshold: 1%
     # Patch gives just the coverage of the patch
     patch: yes
     # changes tells us if there are unexpected code coverage changes in other files