diff --git a/Cargo.lock b/Cargo.lock
index c9438df8ab70d..b0be09daa53e8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1018,12 +1018,12 @@ dependencies = [
 
 [[package]]
 name = "crossbeam-channel"
-version = "0.4.3"
+version = "0.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "09ee0cc8804d5393478d743b035099520087a5186f3b93fa58cec08fa62407b6"
+checksum = "b153fe7cbef478c567df0f972e02e6d736db11affe43dfc9c56a9374d1adfb87"
 dependencies = [
- "cfg-if",
  "crossbeam-utils",
+ "maybe-uninit",
 ]
 
 [[package]]
diff --git a/deny.toml b/deny.toml
index e98c413a7750d..9ccea0953b846 100644
--- a/deny.toml
+++ b/deny.toml
@@ -2,11 +2,6 @@
 ignore = [
     # net2: `net2` crate has been deprecated; use `socket2` instead
     "RUSTSEC-2020-0016",
-    # spin: spin is no longer actively maintained
-    "RUSTSEC-2019-0031",
     # failure: failure is officially deprecated/unmaintained
     "RUSTSEC-2020-0036",
-    # sized-chunks: Multiple soundness issues in Chunk and InlineArray
-    # Tracking issue: https://github.com/timberio/vector/issues/3764
-    "RUSTSEC-2020-0041",
 ]