diff --git a/Cargo.lock b/Cargo.lock
index c9be0eb..a0ab665 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -17,8 +17,8 @@ dependencies = [
  "futures-core",
  "futures-sink",
  "log",
- "pin-project 0.4.27",
- "tokio 0.2.25",
+ "pin-project 0.4.28",
+ "tokio",
  "tokio-util",
 ]
 
@@ -123,7 +123,7 @@ dependencies = [
  "futures-channel",
  "futures-util",
  "smallvec",
- "tokio 0.2.25",
+ "tokio",
 ]
 
 [[package]]
@@ -153,7 +153,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0052435d581b5be835d11f4eb3bce417c8af18d87ddf8ace99f8e67e595882bb"
 dependencies = [
  "futures-util",
- "pin-project 0.4.27",
+ "pin-project 0.4.28",
 ]
 
 [[package]]
@@ -213,7 +213,7 @@ dependencies = [
  "futures-sink",
  "futures-util",
  "log",
- "pin-project 0.4.27",
+ "pin-project 0.4.28",
  "slab",
 ]
 
@@ -281,15 +281,6 @@ dependencies = [
  "serde 1.0.125",
 ]
 
-[[package]]
-name = "addr2line"
-version = "0.14.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a55f82cfe485775d02112886f4169bde0c5894d75e79ead7eafe7e40a25e45f7"
-dependencies = [
- "gimli",
-]
-
 [[package]]
 name = "adler"
 version = "1.0.2"
@@ -367,20 +358,6 @@ dependencies = [
  "serde_urlencoded",
 ]
 
-[[package]]
-name = "backtrace"
-version = "0.3.56"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9d117600f438b1707d4e4ae15d3595657288f8235a0eb593e80ecc98ab34e1bc"
-dependencies = [
- "addr2line",
- "cfg-if 1.0.0",
- "libc",
- "miniz_oxide",
- "object",
- "rustc-demangle",
-]
-
 [[package]]
 name = "badge"
 version = "0.3.0"
@@ -891,12 +868,6 @@ dependencies = [
  "syn",
 ]
 
-[[package]]
-name = "gimli"
-version = "0.23.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f6503fe142514ca4799d4c26297c4248239fe8838d827db6bd6065c6ed29a6ce"
-
 [[package]]
 name = "git2"
 version = "0.13.17"
@@ -926,7 +897,7 @@ dependencies = [
  "http",
  "indexmap",
  "slab",
- "tokio 0.2.25",
+ "tokio",
  "tokio-util",
  "tracing",
  "tracing-futures",
@@ -980,7 +951,7 @@ dependencies = [
  "serde_derive",
  "serde_json",
  "tempfile",
- "tokio 0.2.25",
+ "tokio",
  "tracing",
  "tracing-actix-web",
  "tracing-bunyan-formatter",
@@ -1053,7 +1024,7 @@ dependencies = [
  "itoa",
  "pin-project 1.0.5",
  "socket2",
- "tokio 0.2.25",
+ "tokio",
  "tower-service",
  "tracing",
  "want",
@@ -1068,7 +1039,7 @@ dependencies = [
  "bytes 0.5.6",
  "hyper",
  "native-tls",
- "tokio 0.2.25",
+ "tokio",
  "tokio-tls",
 ]
 
@@ -1467,12 +1438,6 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "830b246a0e5f20af87141b25c173cd1b609bd7779a4617d6ec582abaf90870f3"
 
-[[package]]
-name = "object"
-version = "0.23.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a9a7ab5d64814df0fe4a4b5ead45ed6c5f181ee3ff04ba344313a6c80446c5d4"
-
 [[package]]
 name = "once_cell"
 version = "1.7.0"
@@ -1534,8 +1499,6 @@ dependencies = [
  "pin-project 1.0.5",
  "rand 0.8.3",
  "thiserror",
- "tokio 1.4.0",
- "tokio-stream",
 ]
 
 [[package]]
@@ -1611,11 +1574,11 @@ checksum = "d4fd5641d01c8f18a23da7b6fe29298ff4b55afcccdf78973b24cf3175fee32e"
 
 [[package]]
 name = "pin-project"
-version = "0.4.27"
+version = "0.4.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2ffbc8e94b38ea3d2d8ba92aea2983b503cd75d0888d75b86bb37970b5698e15"
+checksum = "918192b5c59119d51e0cd221f4d49dde9112824ba717369e903c97d076083d0f"
 dependencies = [
- "pin-project-internal 0.4.27",
+ "pin-project-internal 0.4.28",
 ]
 
 [[package]]
@@ -1629,9 +1592,9 @@ dependencies = [
 
 [[package]]
 name = "pin-project-internal"
-version = "0.4.27"
+version = "0.4.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "65ad2ae56b6abe3a1ee25f15ee605bacadb9a764edaba9c2bf4103800d4a1895"
+checksum = "3be26700300be6d9d23264c73211d8190e755b6b5ca7a1b28230025511b52a5e"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1892,7 +1855,7 @@ dependencies = [
  "pin-project-lite 0.2.4",
  "serde 1.0.125",
  "serde_urlencoded",
- "tokio 0.2.25",
+ "tokio",
  "tokio-tls",
  "url",
  "wasm-bindgen",
@@ -1930,12 +1893,6 @@ version = "0.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3e52c148ef37f8c375d49d5a73aa70713125b7f19095948a923f80afdeb22ec2"
 
-[[package]]
-name = "rustc-demangle"
-version = "0.1.18"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6e3bad0ee36814ca07d7968269dd4b7ec89ec2da10c4bb613928d3077083c232"
-
 [[package]]
 name = "rustc_version"
 version = "0.2.3"
@@ -2366,27 +2323,6 @@ dependencies = [
  "winapi 0.3.9",
 ]
 
-[[package]]
-name = "tokio"
-version = "1.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "134af885d758d645f0f0505c9a8b3f9bf8a348fd822e112ab5248138348f1722"
-dependencies = [
- "autocfg",
- "pin-project-lite 0.2.4",
-]
-
-[[package]]
-name = "tokio-stream"
-version = "0.1.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e177a5d8c3bf36de9ebe6d58537d8879e964332f93fb3339e43f618c81361af0"
-dependencies = [
- "futures-core",
- "pin-project-lite 0.2.4",
- "tokio 1.4.0",
-]
-
 [[package]]
 name = "tokio-tls"
 version = "0.3.1"
@@ -2394,7 +2330,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9a70f4fcd7b3b24fb194f837560168208f669ca8cb70d0c4b862944452396343"
 dependencies = [
  "native-tls",
- "tokio 0.2.25",
+ "tokio",
 ]
 
 [[package]]
@@ -2408,7 +2344,7 @@ dependencies = [
  "futures-sink",
  "log",
  "pin-project-lite 0.1.11",
- "tokio 0.2.25",
+ "tokio",
 ]
 
 [[package]]
@@ -2557,12 +2493,12 @@ dependencies = [
 
 [[package]]
 name = "trust-dns-proto"
-version = "0.19.6"
+version = "0.19.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "53861fcb288a166aae4c508ae558ed18b53838db728d4d310aad08270a7d4c2b"
+checksum = "1cad71a0c0d68ab9941d2fb6e82f8fb2e86d9945b94e1661dd0aaea2b88215a9"
 dependencies = [
  "async-trait",
- "backtrace",
+ "cfg-if 1.0.0",
  "enum-as-inner",
  "futures",
  "idna",
@@ -2571,17 +2507,16 @@ dependencies = [
  "rand 0.7.3",
  "smallvec",
  "thiserror",
- "tokio 0.2.25",
+ "tokio",
  "url",
 ]
 
 [[package]]
 name = "trust-dns-resolver"
-version = "0.19.6"
+version = "0.19.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6759e8efc40465547b0dfce9500d733c65f969a4cbbfbe3ccf68daaa46ef179e"
+checksum = "710f593b371175db53a26d0b38ed2978fafb9e9e8d3868b1acd753ea18df0ceb"
 dependencies = [
- "backtrace",
  "cfg-if 0.1.10",
  "futures",
  "ipconfig",
@@ -2591,7 +2526,7 @@ dependencies = [
  "resolv-conf",
  "smallvec",
  "thiserror",
- "tokio 0.2.25",
+ "tokio",
  "trust-dns-proto",
 ]
 
diff --git a/Cargo.toml b/Cargo.toml
index 436b283..c81de38 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -25,7 +25,9 @@ git2 = "0.13.17"
 lazy_static = "1.4.0"
 number_prefix = "0.4.0"
 openssl-probe = "0.1.2"
-opentelemetry = { version = "0.12.0", default-features = false, features = ["trace", "tokio-support"] }
+# TODO: upgrade
+opentelemetry = { version = "0.12.0", default-features = false, features = ["trace"] }
+# TODO: upgrade
 opentelemetry-jaeger = "0.11.0"
 reqwest = "0.10.10"
 serde = "1.0.125"