diff --git a/Cargo.lock b/Cargo.lock
index 313e3c3344c8f..fcfdfc0dd04df 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2923,9 +2923,9 @@ dependencies = [
 
 [[package]]
 name = "mio"
-version = "0.8.3"
+version = "0.8.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "713d550d9b44d89174e066b7a6217ae06234c10cb47819a88290d2b353c31799"
+checksum = "57ee1c23c7c63b0c9250c339ffdc69255f110b298b901b9f6c82547b7b87caaf"
 dependencies = [
  "libc",
  "log",
@@ -6367,10 +6367,11 @@ dependencies = [
 
 [[package]]
 name = "tokio"
-version = "1.19.2"
+version = "1.21.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c51a52ed6686dd62c320f9b89299e9dfb46f730c7a48e635c19f21d116cb1439"
+checksum = "0020c875007ad96677dcc890298f4b942882c5d4eb7cc8f439fc3bf813dc9c95"
 dependencies = [
+ "autocfg",
  "bytes",
  "libc",
  "memchr",
diff --git a/src/adapter/Cargo.toml b/src/adapter/Cargo.toml
index 9be4fc2d2763b..ecd91b1e4899b 100644
--- a/src/adapter/Cargo.toml
+++ b/src/adapter/Cargo.toml
@@ -48,7 +48,7 @@ semver = "1.0.13"
 serde = "1.0.144"
 serde_json = "1.0.85"
 timely = { git = "https://github.com/TimelyDataflow/timely-dataflow", default-features = false, features = ["bincode"] }
-tokio = { version = "1.19.2", features = ["rt", "time"] }
+tokio = { version = "1.21.1", features = ["rt", "time"] }
 tokio-postgres = { git = "https://github.com/MaterializeInc/rust-postgres" }
 tokio-stream = "0.1.9"
 tracing = "0.1.36"
diff --git a/src/billing-demo/Cargo.toml b/src/billing-demo/Cargo.toml
index c13ff3c61aa16..ab0afab7a5109 100644
--- a/src/billing-demo/Cargo.toml
+++ b/src/billing-demo/Cargo.toml
@@ -17,7 +17,7 @@ prost = { version = "0.11.0", features = ["no-recursion-limit"] }
 prost-types = "0.11.1"
 rand = "0.8.5"
 rand_distr = "0.4.3"
-tokio = "1.19.2"
+tokio = "1.21.1"
 tokio-postgres = { git = "https://github.com/MaterializeInc/rust-postgres" }
 tracing = "0.1.36"
 tracing-subscriber = { version = "0.3.15", features = ["env-filter"] }
diff --git a/src/ccsr/Cargo.toml b/src/ccsr/Cargo.toml
index 11f18a7bfe403..458792b309a4e 100644
--- a/src/ccsr/Cargo.toml
+++ b/src/ccsr/Cargo.toml
@@ -20,7 +20,7 @@ hyper = { version = "0.14.20", features = ["server"] }
 once_cell = "1.13.1"
 mz-ore = { path = "../ore", features = ["task"] }
 serde_json = "1.0.85"
-tokio = { version = "1.19.2", features = ["macros"] }
+tokio = { version = "1.21.1", features = ["macros"] }
 tracing = "0.1.36"
 
 [build-dependencies]
diff --git a/src/compute-client/Cargo.toml b/src/compute-client/Cargo.toml
index 2cb7d12a52da2..6bae3648da3ca 100644
--- a/src/compute-client/Cargo.toml
+++ b/src/compute-client/Cargo.toml
@@ -29,7 +29,7 @@ prost = { version = "0.11.0", features = ["no-recursion-limit"] }
 serde = { version = "1.0.144", features = ["derive"] }
 serde_json = "1.0.85"
 timely = { git = "https://github.com/TimelyDataflow/timely-dataflow", default-features = false, features = ["bincode"] }
-tokio = "1.19.2"
+tokio = "1.21.1"
 tokio-stream = "0.1.9"
 tonic = "0.8.0"
 tracing = "0.1.36"
diff --git a/src/compute/Cargo.toml b/src/compute/Cargo.toml
index 5447cb71a9b8d..f4ab8c52122f6 100644
--- a/src/compute/Cargo.toml
+++ b/src/compute/Cargo.toml
@@ -32,7 +32,7 @@ prometheus = { version = "0.13.1", default-features = false }
 scopeguard = "1.1.0"
 serde = { version = "1.0.144", features = ["derive"] }
 timely = { git = "https://github.com/TimelyDataflow/timely-dataflow", default-features = false, features = ["bincode"] }
-tokio = { version = "1.19.2", features = ["fs", "rt", "sync"] }
+tokio = { version = "1.21.1", features = ["fs", "rt", "sync"] }
 tracing = "0.1.36"
 uuid = { version = "1.1.2", features = ["serde", "v4"] }
 
diff --git a/src/controller/Cargo.toml b/src/controller/Cargo.toml
index 9929645749bdb..8943c83e83d65 100644
--- a/src/controller/Cargo.toml
+++ b/src/controller/Cargo.toml
@@ -26,6 +26,6 @@ prost = { version = "0.11.0", features = ["no-recursion-limit"] }
 regex = "1.6.0"
 serde = { version = "1.0.144", features = ["derive"] }
 timely = { git = "https://github.com/TimelyDataflow/timely-dataflow", default-features = false, features = ["bincode"] }
-tokio = "1.19.2"
+tokio = "1.21.1"
 tracing = "0.1.36"
 uuid = { version = "1.1.2" }
diff --git a/src/environmentd/Cargo.toml b/src/environmentd/Cargo.toml
index 0b56f2497f1ab..f57471cac6a16 100644
--- a/src/environmentd/Cargo.toml
+++ b/src/environmentd/Cargo.toml
@@ -63,7 +63,7 @@ sysctl = "0.5.2"
 sysinfo = "0.25.3"
 tempfile = "3.2.0"
 thiserror = "1.0.32"
-tokio = { version = "1.19.2", features = ["sync"] }
+tokio = { version = "1.21.1", features = ["sync"] }
 tokio-openssl = "0.6.3"
 tokio-postgres = { git = "https://github.com/MaterializeInc/rust-postgres" }
 tokio-stream = { version = "0.1.9", features = ["net"] }
diff --git a/src/frontegg-auth/Cargo.toml b/src/frontegg-auth/Cargo.toml
index 5b338f051e170..7831c7120c51b 100644
--- a/src/frontegg-auth/Cargo.toml
+++ b/src/frontegg-auth/Cargo.toml
@@ -15,6 +15,6 @@ mz-ore = { path = "../ore" }
 reqwest = "0.11.11"
 serde = { version = "1.0.144", features = ["derive"] }
 thiserror = "1.0.32"
-tokio = "1.19.2"
+tokio = "1.21.1"
 tracing = "0.1.36"
 uuid = "1.1.2"
diff --git a/src/interchange/Cargo.toml b/src/interchange/Cargo.toml
index 709fd41481827..9e0fd89f2391c 100644
--- a/src/interchange/Cargo.toml
+++ b/src/interchange/Cargo.toml
@@ -34,7 +34,7 @@ uuid = { version = "1.1.2", features = ["serde"] }
 
 [dev-dependencies]
 criterion = { git = "https://github.com/bheisler/criterion.rs.git", branch = "version-0.4", features = ["async_tokio"] }
-tokio = { version = "1.19.2", features = ["macros"] }
+tokio = { version = "1.21.1", features = ["macros"] }
 
 [build-dependencies]
 prost-build = "0.11.1"
diff --git a/src/kafka-util/Cargo.toml b/src/kafka-util/Cargo.toml
index bc941a254de42..a186b6b977488 100644
--- a/src/kafka-util/Cargo.toml
+++ b/src/kafka-util/Cargo.toml
@@ -23,7 +23,7 @@ rand = "0.8.5"
 rdkafka = { git = "https://github.com/fede1024/rust-rdkafka.git", features = ["cmake-build", "ssl-vendored", "libz-static", "zstd"] }
 serde = { version = "1.0.144", features = ["derive"] }
 serde_json = "1.0.85"
-tokio = { version = "1.19.2", features = ["macros"] }
+tokio = { version = "1.21.1", features = ["macros"] }
 thiserror = "1.0.32"
 tracing = "0.1.36"
 url = "2.2.2"
diff --git a/src/mz/Cargo.toml b/src/mz/Cargo.toml
index 6b920e2f6af37..af8c48731df95 100644
--- a/src/mz/Cargo.toml
+++ b/src/mz/Cargo.toml
@@ -10,7 +10,7 @@ publish = false
 [dependencies]
 serde = { version = "1.0.144", features = ["derive"] }
 clap = { version = "3.2.17", features = [ "derive" ] }
-tokio = { version = "1.19.2", features = ["full"] }
+tokio = { version = "1.21.1", features = ["full"] }
 open = "3.0.2"
 axum = "0.5.15"
 rpassword = "7.0"
diff --git a/src/orchestrator-process/Cargo.toml b/src/orchestrator-process/Cargo.toml
index 692fbd22d43a9..1ea79bf6f3bef 100644
--- a/src/orchestrator-process/Cargo.toml
+++ b/src/orchestrator-process/Cargo.toml
@@ -21,7 +21,7 @@ mz-secrets = { path = "../secrets" }
 serde_json = "1.0.85"
 scopeguard = "1.1.0"
 sysinfo = "0.25.3"
-tokio = { version = "1.19.2", features = ["process"] }
+tokio = { version = "1.21.1", features = ["process"] }
 tracing = "0.1.36"
 
 [dev-dependencies]
diff --git a/src/ore/Cargo.toml b/src/ore/Cargo.toml
index 9b44b0a64fdad..ef94c35c0ec10 100644
--- a/src/ore/Cargo.toml
+++ b/src/ore/Cargo.toml
@@ -34,7 +34,7 @@ stacker = { version = "0.1.15", optional = true }
 serde = { version = "1.0.144", features = ["derive"], optional = true }
 serde_json = { version = "1.0.82", optional = true }
 ssh-key = { version = "0.4.2", optional = true }
-tokio = { version = "1.19.2", features = ["io-util", "net", "rt-multi-thread", "time"], optional = true }
+tokio = { version = "1.21.1", features = ["io-util", "net", "rt-multi-thread", "time"], optional = true }
 tokio-openssl = { version = "0.6.3", optional = true }
 # TODO(guswynn): determine, when, if ever, we can remove `tracing-log`
 # The `tracing-log` feature here is load-bearing: While our busiest-logging dependency (`rdkafka`) is now hooked-up
@@ -60,7 +60,7 @@ opentelemetry-otlp = { git = "https://github.com/MaterializeInc/opentelemetry-ru
 console-subscriber = { version = "0.1.7", optional = true }
 
 [dev-dependencies]
-tokio = { version = "1.19.2", features = ["macros"] }
+tokio = { version = "1.21.1", features = ["macros"] }
 
 [features]
 default = ["network", "chrono", "cli", "metrics", "stack", "test"]
diff --git a/src/persist-client/Cargo.toml b/src/persist-client/Cargo.toml
index 71edeba8a2e87..a2efd5e54d15f 100644
--- a/src/persist-client/Cargo.toml
+++ b/src/persist-client/Cargo.toml
@@ -48,7 +48,7 @@ prost = { version = "0.11.0", features = ["no-recursion-limit"] }
 semver = "1.0.13"
 serde = { version = "1.0.144", features = ["derive"] }
 timely = { git = "https://github.com/TimelyDataflow/timely-dataflow", default-features = false, features = ["bincode"] }
-tokio = { version = "1.19.2", default-features = false, features = ["macros", "sync", "rt", "rt-multi-thread", "time"] }
+tokio = { version = "1.21.1", default-features = false, features = ["macros", "sync", "rt", "rt-multi-thread", "time"] }
 tracing = "0.1.36"
 uuid = { version = "1.1.2", features = ["v4"] }
 
diff --git a/src/persist/Cargo.toml b/src/persist/Cargo.toml
index 23e75c5c24d1b..807f97d0fa295 100644
--- a/src/persist/Cargo.toml
+++ b/src/persist/Cargo.toml
@@ -44,7 +44,7 @@ prost = { version = "0.11.0", features = ["no-recursion-limit"] }
 rand = { version = "0.8.5", features = ["small_rng"] }
 serde = { version = "1.0.144", features = ["derive"] }
 timely = { git = "https://github.com/TimelyDataflow/timely-dataflow", default-features = false, features = ["bincode"] }
-tokio = { version = "1.19.2", default-features = false, features = ["fs", "macros", "sync", "rt", "rt-multi-thread"] }
+tokio = { version = "1.21.1", default-features = false, features = ["fs", "macros", "sync", "rt", "rt-multi-thread"] }
 tokio-postgres = { git = "https://github.com/MaterializeInc/rust-postgres" }
 tracing = "0.1.36"
 url = "2.2.2"
diff --git a/src/pgwire/Cargo.toml b/src/pgwire/Cargo.toml
index d9864720daf5f..54baaa2c2103e 100644
--- a/src/pgwire/Cargo.toml
+++ b/src/pgwire/Cargo.toml
@@ -23,7 +23,7 @@ mz-repr = { path = "../repr" }
 mz-sql = { path = "../sql" }
 openssl = { version = "0.10.41", features = ["vendored"] }
 postgres = { git = "https://github.com/MaterializeInc/rust-postgres" }
-tokio = "1.19.2"
+tokio = "1.21.1"
 tokio-openssl = "0.6.3"
 tokio-util = { version = "0.7.3", features = ["codec"] }
 tracing = "0.1.36"
diff --git a/src/postgres-util/Cargo.toml b/src/postgres-util/Cargo.toml
index 68798e9f1afe0..251c85c4e2eca 100644
--- a/src/postgres-util/Cargo.toml
+++ b/src/postgres-util/Cargo.toml
@@ -16,7 +16,7 @@ postgres-openssl = { git = "https://github.com/MaterializeInc/rust-postgres" }
 proptest = { git = "https://github.com/MaterializeInc/proptest.git", default-features = false, features = ["std"]}
 prost = { version = "0.11.0", features = ["no-recursion-limit"] }
 serde = { version = "1.0.144", features = ["derive"] }
-tokio = { version = "1.19.2", features = ["fs", "rt", "sync"] }
+tokio = { version = "1.21.1", features = ["fs", "rt", "sync"] }
 tokio-postgres = { git = "https://github.com/MaterializeInc/rust-postgres" }
 
 [build-dependencies]
diff --git a/src/prof/Cargo.toml b/src/prof/Cargo.toml
index 5cd9bb5f88d34..6cd4e9b2aed77 100644
--- a/src/prof/Cargo.toml
+++ b/src/prof/Cargo.toml
@@ -23,7 +23,7 @@ pprof = { git = "https://github.com/MaterializeInc/pprof-rs.git" }
 serde = { version = "1.0.144", features = ["derive"] }
 tempfile = "3.2.0"
 tracing = "0.1.36"
-tokio = { version = "1.19.2", features = ["time"] }
+tokio = { version = "1.21.1", features = ["time"] }
 
 [target.'cfg(not(target_os = "macos"))'.dependencies]
 tikv-jemalloc-ctl = { version = "0.4.1", features = ["use_std"], optional = true }
diff --git a/src/s3-datagen/Cargo.toml b/src/s3-datagen/Cargo.toml
index e0ee2af84dd52..c25fefdd64f3a 100644
--- a/src/s3-datagen/Cargo.toml
+++ b/src/s3-datagen/Cargo.toml
@@ -15,6 +15,6 @@ clap = { version = "3.2.17", features = ["derive"] }
 futures = "0.3.23"
 indicatif = "0.17.0"
 mz-ore = { path = "../ore" }
-tokio = { version = "1.19.2", features = ["macros", "net", "rt", "time"] }
+tokio = { version = "1.21.1", features = ["macros", "net", "rt", "time"] }
 tracing = "0.1.36"
 tracing-subscriber = { version = "0.3.15", default-features = false, features = ["env-filter", "fmt"] }
diff --git a/src/service/Cargo.toml b/src/service/Cargo.toml
index 19e004ebc5b3a..047477e5092a4 100644
--- a/src/service/Cargo.toml
+++ b/src/service/Cargo.toml
@@ -21,7 +21,7 @@ mz-orchestrator-process = { path = "../orchestrator-process" }
 mz-orchestrator-kubernetes = { path = "../orchestrator-kubernetes" }
 once_cell = "1.13.1"
 semver = "1.0.13"
-tokio = "1.19.2"
+tokio = "1.21.1"
 tokio-stream = "0.1.9"
 tonic = "0.8.0"
 tower = "0.4.13"
diff --git a/src/sql/Cargo.toml b/src/sql/Cargo.toml
index 3cfcd2608a720..6dff60d9e3bae 100644
--- a/src/sql/Cargo.toml
+++ b/src/sql/Cargo.toml
@@ -38,7 +38,7 @@ regex = "1.6.0"
 reqwest = "0.11.11"
 serde = { version = "1.0.144", features = ["derive"] }
 serde_json = "1.0.85"
-tokio = { version = "1.19.2", features = ["fs"] }
+tokio = { version = "1.21.1", features = ["fs"] }
 tokio-postgres = { git = "https://github.com/MaterializeInc/rust-postgres", features = ["serde"] }
 tracing = "0.1.36"
 typemap_rev = "0.1.5"
diff --git a/src/sqllogictest/Cargo.toml b/src/sqllogictest/Cargo.toml
index e883ef55363e3..30771cb5de617 100644
--- a/src/sqllogictest/Cargo.toml
+++ b/src/sqllogictest/Cargo.toml
@@ -34,7 +34,7 @@ regex = "1.6.0"
 serde_json = "1.0.85"
 tempfile = "3.2.0"
 time = "0.3.14"
-tokio = "1.19.2"
+tokio = "1.21.1"
 tokio-postgres = { git = "https://github.com/MaterializeInc/rust-postgres", features = ["with-chrono-0_4", "with-uuid-1", "with-serde_json-1"] }
 tower-http = { version = "0.3.4", features = ["cors"] }
 uuid = "1.1.2"
diff --git a/src/stash/Cargo.toml b/src/stash/Cargo.toml
index 6a81c9b5147f7..b1e4acb8fa320 100644
--- a/src/stash/Cargo.toml
+++ b/src/stash/Cargo.toml
@@ -22,7 +22,7 @@ rusqlite = { version = "0.28.0", features = ["bundled"] }
 serde = "1.0.144"
 serde_json = "1.0.85"
 timely = { git = "https://github.com/TimelyDataflow/timely-dataflow", default-features = false }
-tokio = "1.19.2"
+tokio = "1.21.1"
 tokio-postgres = { git = "https://github.com/MaterializeInc/rust-postgres", features = [ "with-serde_json-1" ] }
 tracing = "0.1.36"
 
@@ -30,4 +30,4 @@ tracing = "0.1.36"
 anyhow = "1.0.62"
 mz-postgres-util = { path = "../postgres-util" }
 tempfile = "3.2.0"
-tokio = { version = "1.19.2", features = ["macros"] }
+tokio = { version = "1.21.1", features = ["macros"] }
diff --git a/src/storage/Cargo.toml b/src/storage/Cargo.toml
index 1084a701d716a..94798f47736cb 100644
--- a/src/storage/Cargo.toml
+++ b/src/storage/Cargo.toml
@@ -64,7 +64,7 @@ regex = { version = "1.6.0" }
 serde = { version = "1.0.144", features = ["derive"] }
 serde_json = { version = "1.0.85" }
 timely = { git = "https://github.com/TimelyDataflow/timely-dataflow", default-features = false, features = ["bincode"] }
-tokio = { version = "1.19.2", features = ["fs", "rt", "sync", "test-util"] }
+tokio = { version = "1.21.1", features = ["fs", "rt", "sync", "test-util"] }
 tokio-postgres = { git = "https://github.com/MaterializeInc/rust-postgres", features = ["serde"] }
 tokio-stream = "0.1.9"
 tokio-util = { version = "0.7.3", features = ["io"] }
@@ -81,7 +81,7 @@ tonic-build = "0.8.0"
 
 [dev-dependencies]
 itertools = "0.10.3"
-tokio = { version = "1.19.2", features = ["test-util"] }
+tokio = { version = "1.21.1", features = ["test-util"] }
 
 [package.metadata.cargo-udeps.ignore]
 # only used on linux
diff --git a/src/storaged/Cargo.toml b/src/storaged/Cargo.toml
index 2c4ea3086be70..697f8ad7b7d15 100644
--- a/src/storaged/Cargo.toml
+++ b/src/storaged/Cargo.toml
@@ -21,7 +21,7 @@ mz-service = { path = "../service" }
 mz-storage = { path = "../storage" }
 once_cell = "1.13.1"
 timely = { git = "https://github.com/TimelyDataflow/timely-dataflow", default-features = false, features = ["bincode"] }
-tokio = { version = "1.19.2", features = ["net"] }
+tokio = { version = "1.21.1", features = ["net"] }
 tracing = "0.1.36"
 tracing-subscriber = "0.3.15"
 
diff --git a/src/testdrive/Cargo.toml b/src/testdrive/Cargo.toml
index 3aac6fc28d6a9..d836c1de872b3 100644
--- a/src/testdrive/Cargo.toml
+++ b/src/testdrive/Cargo.toml
@@ -63,7 +63,7 @@ tiberius = { version = "0.10.0", default-features = false }
 time = "0.3.14"
 tracing = "0.1.36"
 tracing-subscriber = { version = "0.3.15", features = ["env-filter"] }
-tokio = { version = "1.19.2", features = ["process"] }
+tokio = { version = "1.21.1", features = ["process"] }
 tokio-postgres = { git = "https://github.com/MaterializeInc/rust-postgres", features = ["with-chrono-0_4", "with-serde_json-1"] }
 tokio-stream = "0.1.9"
 tokio-util = { version = "0.7.3", features = ["compat"] }
diff --git a/src/timely-util/Cargo.toml b/src/timely-util/Cargo.toml
index 7efd4d384af87..80a3af04ecf85 100644
--- a/src/timely-util/Cargo.toml
+++ b/src/timely-util/Cargo.toml
@@ -13,4 +13,4 @@ proptest = { git = "https://github.com/MaterializeInc/proptest.git", default-fea
 timely = { git = "https://github.com/TimelyDataflow/timely-dataflow", default-features = false }
 
 [dev-dependencies]
-tokio = { version = "1.19.2", features = ["macros", "rt-multi-thread", "time"] }
+tokio = { version = "1.21.1", features = ["macros", "rt-multi-thread", "time"] }
diff --git a/test/metabase/smoketest/Cargo.toml b/test/metabase/smoketest/Cargo.toml
index 87e428519c2a5..41696fff763de 100644
--- a/test/metabase/smoketest/Cargo.toml
+++ b/test/metabase/smoketest/Cargo.toml
@@ -11,6 +11,6 @@ anyhow = "1.0.62"
 itertools = "0.10.3"
 mz-metabase = { path = "../../../src/metabase" }
 mz-ore = { path = "../../../src/ore", features = ["task"] }
-tokio = "1.19.2"
+tokio = "1.21.1"
 tokio-postgres = { git = "https://github.com/MaterializeInc/rust-postgres" }
 tracing = "0.1.36"
diff --git a/test/perf-kinesis/Cargo.toml b/test/perf-kinesis/Cargo.toml
index 37b26b1c123a8..8f39435954b61 100644
--- a/test/perf-kinesis/Cargo.toml
+++ b/test/perf-kinesis/Cargo.toml
@@ -18,7 +18,7 @@ mz-kinesis-util = { path = "../../src/kinesis-util" }
 mz-ore = { path = "../../src/ore", features = ["task"] }
 mz-test-util = { path = "../test-util" }
 rand = "0.8.5"
-tokio = "1.19.2"
+tokio = "1.21.1"
 tokio-postgres = { git = "https://github.com/MaterializeInc/rust-postgres" }
 tracing = "0.1.36"
 tracing-subscriber = { version = "0.3.15", features = ["env-filter"] }
diff --git a/test/test-util/Cargo.toml b/test/test-util/Cargo.toml
index 0c5caf981ffb8..7945385cc823d 100644
--- a/test/test-util/Cargo.toml
+++ b/test/test-util/Cargo.toml
@@ -13,6 +13,6 @@ mz-kafka-util = { path = "../../src/kafka-util" }
 mz-ore = { path = "../../src/ore", features = ["task"] }
 rand = "0.8.5"
 rdkafka = { git = "https://github.com/fede1024/rust-rdkafka.git", features = ["cmake-build", "ssl-vendored", "libz-static", "zstd"] }
-tokio = "1.19.2"
+tokio = "1.21.1"
 tokio-postgres = { git = "https://github.com/MaterializeInc/rust-postgres" }
 tracing = "0.1.36"