diff --git a/Cargo.lock b/Cargo.lock
index 118e44d..d7d28b7 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -25,7 +25,7 @@ dependencies = [
  "tokio-rustls",
  "tokio-stream",
  "tokio-test",
- "tokio-util 0.7.1",
+ "tokio-util",
  "toml",
  "tracing",
  "tracing-futures",
@@ -679,7 +679,7 @@ dependencies = [
  "indexmap",
  "slab",
  "tokio",
- "tokio-util 0.7.1",
+ "tokio-util",
  "tracing",
 ]
 
@@ -1561,6 +1561,15 @@ dependencies = [
  "webpki",
 ]
 
+[[package]]
+name = "rustls-pemfile"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5eebeaeb360c87bfb72e84abdb3447159c0eaececf1bef2aecd65a8be949d1c9"
+dependencies = [
+ "base64",
+]
+
 [[package]]
 name = "rustversion"
 version = "1.0.6"
@@ -2180,20 +2189,6 @@ dependencies = [
  "tokio-stream",
 ]
 
-[[package]]
-name = "tokio-util"
-version = "0.6.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9e99e1983e5d376cd8eb4b66604d2e99e79f5bd988c3055891dcd8c9e2604cc0"
-dependencies = [
- "bytes",
- "futures-core",
- "futures-sink",
- "log",
- "pin-project-lite",
- "tokio",
-]
-
 [[package]]
 name = "tokio-util"
 version = "0.7.1"
@@ -2613,9 +2608,9 @@ dependencies = [
 
 [[package]]
 name = "warp"
-version = "0.3.2"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3cef4e1e9114a4b7f1ac799f16ce71c14de5778500c5450ec6b7b920c55b587e"
+checksum = "ed7b8be92646fc3d18b06147664ebc5f48d222686cb11a8755e561a735aacc6d"
 dependencies = [
  "bytes",
  "futures-channel",
@@ -2628,13 +2623,14 @@ dependencies = [
  "mime_guess",
  "percent-encoding",
  "pin-project",
+ "rustls-pemfile",
  "scoped-tls",
  "serde",
  "serde_json",
  "serde_urlencoded",
  "tokio",
  "tokio-stream",
- "tokio-util 0.6.9",
+ "tokio-util",
  "tower-service",
  "tracing",
 ]