diff --git a/taskcluster/ci/diffoscope/kind.yml b/taskcluster/ci/diffoscope/kind.yml
index 2eb11badb96a..8720e88679da 100644
--- a/taskcluster/ci/diffoscope/kind.yml
+++ b/taskcluster/ci/diffoscope/kind.yml
@@ -66,6 +66,7 @@ jobs:
 
     reproducible-linux32:
         symbol: Linux32
+        tier: 3
         new: build-linux-reproduced/opt
         original: build-linux-shippable/opt
         fail-on-diff: true
@@ -81,6 +82,7 @@ jobs:
 
     reproducible-linux64:
         symbol: Linux64
+        tier: 3
         new: build-linux64-reproduced/opt
         original: build-linux64-shippable/opt
         fail-on-diff: true