diff --git a/test/e2e-tests.sh b/test/e2e-tests.sh
index a0087ee23da..723538d44ce 100755
--- a/test/e2e-tests.sh
+++ b/test/e2e-tests.sh
@@ -30,9 +30,16 @@ source $(dirname $0)/../vendor/github.com/knative/test-infra/scripts/e2e-tests.s
 # Using the most recent good release of eventing-sources to unblock tests. This
 # should be replaced with the commented line below when eventing-sources nightly
 # is known good again.
-readonly KNATIVE_EVENTING_SOURCES_RELEASE=https://knative-nightly.storage.googleapis.com/eventing-sources/previous/v20181205-fbac942/release.yaml
+
+# Good (pinned):
+#readonly KNATIVE_EVENTING_SOURCES_RELEASE=https://knative-nightly.storage.googleapis.com/eventing-sources/previous/v20181205-fbac942/release.yaml
+
+# Bad (latest):
 #readonly KNATIVE_EVENTING_SOURCES_RELEASE=https://knative-nightly.storage.googleapis.com/eventing-sources/latest/release.yaml
 
+# Good (https://github.com/knative/eventing-sources/pull/179):
+readonly KNATIVE_EVENTING_SOURCES_RELEASE=https://grantrodgers-knative-nightly.storage.googleapis.com/eventing-sources/previous/v20190111-8f346725/release.yaml
+
 # Names of the Resources used in the tests.
 readonly E2E_TEST_NAMESPACE=e2etest
 readonly E2E_TEST_FUNCTION_NAMESPACE=e2etestfn3