diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 8d76cde28..60d8cf7a6 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -54,18 +54,18 @@ jobs:
     name: cross
     rust: stable
 
-# # This represents the minimum Rust version supported by
-# # Tokio. Updating this should be done in a dedicated PR and
-# # cannot be greater than two 0.x releases prior to the
-# # current stable.
-# #
-# # Tests are not run as tests may require newer versions of
-# # rust.
-# - template: ci/azure-check-minrust.yml
-#   parameters:
-#     name: minrust
-#     rust_version: 1.34.0
+# This represents the minimum Rust version supported by
+# Tokio. Updating this should be done in a dedicated PR and
+# cannot be greater than two 0.x releases prior to the
+# current stable.
 #
+# Tests are not run as tests may require newer versions of
+# rust.
+- template: ci/azure-check-minrust.yml
+  parameters:
+    name: minrust
+    rust_version: 1.39.0
+
 # - template: ci/azure-tsan.yml
 #   parameters:
 #     name: tsan
diff --git a/rust-toolchain b/rust-toolchain
deleted file mode 100644
index 2bf5ad044..000000000
--- a/rust-toolchain
+++ /dev/null
@@ -1 +0,0 @@
-stable