diff --git a/roles/Cargo.lock b/roles/Cargo.lock
index 12d710ffce..068af953f4 100644
--- a/roles/Cargo.lock
+++ b/roles/Cargo.lock
@@ -1,6 +1,6 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
-version = 4
+version = 3
 
 [[package]]
 name = "addr2line"
diff --git a/roles/tests-integration/Cargo.toml b/roles/tests-integration/Cargo.toml
index 811556b6d3..77b5a30089 100644
--- a/roles/tests-integration/Cargo.toml
+++ b/roles/tests-integration/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "integration-test"
 version = "0.1.0"
-edition = "2021"
+edition = "2018"
 
 [dependencies]
 async-channel = "1.5.1"