diff --git a/examples/Cargo.toml b/examples/Cargo.toml
index 0721525e..fe6c82cb 100644
--- a/examples/Cargo.toml
+++ b/examples/Cargo.toml
@@ -26,35 +26,35 @@ tracing-appender = { path = "../tracing-appender" }
 tracing-journald = { path = "../tracing-journald" }
 
 # serde example
-serde_json = "1.0"
+serde_json = "1.0.82"
 
-futures = "0.3"
-tokio = { version = "1.1", features = ["full"] }
+futures = "0.3.21"
+tokio = { version = "1.20.0", features = ["full"] }
 
 # env-logger example
-env_logger = "0.8"
+env_logger = "0.8.4"
 
 # tower examples
-tower = { version = "0.4.4", features = ["full"] }
-http = "0.2"
-hyper = { version = "0.14.11", features = ["full"] }
-rand = "0.7"
-bytes = "1"
-argh = "0.1.5"
+tower = { version = "0.4.13", features = ["full"] }
+http = "0.2.8"
+hyper = { version = "0.14.20", features = ["full"] }
+rand = "0.7.3"
+bytes = "1.2.0"
+argh = "0.1.8"
 
 # sloggish example
-ansi_term = "0.12"
-humantime = "2.0"
-log = "0.4"
+ansi_term = "0.12.1"
+humantime = "2.1.0"
+log = "0.4.17"
 
 # inferno example
-inferno = "0.11.0"
-tempfile = "3"
+inferno = "0.11.6"
+tempfile = "3.3.0"
 
 # opentelemetry example
-opentelemetry = { version = "0.17", default-features = false, features = ["trace"] }
-opentelemetry-jaeger = "0.16"
+opentelemetry = { version = "0.17.0", default-features = false, features = ["trace"] }
+opentelemetry-jaeger = "0.16.0"
 
 # fmt examples
 snafu = "0.6.10"
-thiserror = "1.0.26"
+thiserror = "1.0.31"
diff --git a/tracing-appender/Cargo.toml b/tracing-appender/Cargo.toml
index 3551dba0..8eaf1f18 100644
--- a/tracing-appender/Cargo.toml
+++ b/tracing-appender/Cargo.toml
@@ -21,10 +21,10 @@ edition = "2018"
 rust-version = "1.53.0"
 
 [dependencies]
-crossbeam-channel = "0.5.0"
-time = { version = "0.3", default-features = false, features = ["formatting"] }
-parking_lot = { optional = true, version = "0.12.0" }
-thiserror = "1"
+crossbeam-channel = "0.5.5"
+time = { version = "0.3.2", default-features = false, features = ["formatting"] }
+parking_lot = { optional = true, version = "0.12.1" }
+thiserror = "1.0.31"
 
 [dependencies.tracing-subscriber]
 path = "../tracing-subscriber"
@@ -33,11 +33,11 @@ default-features = false
 features = ["fmt", "std"]
 
 [dev-dependencies]
-criterion = { version = "0.3", default_features = false }
+criterion = { version = "0.3.6", default_features = false }
 tracing = { path = "../tracing", version = "0.2" }
-time = { version = "0.3", default-features = false, features = ["formatting", "parsing"] }
-tempfile = "3"
+time = { version = "0.3.2", default-features = false, features = ["formatting", "parsing"] }
+tempfile = "3.3.0"
 
 [[bench]]
 name = "bench"
-harness = false
\ No newline at end of file
+harness = false
diff --git a/tracing-attributes/Cargo.toml b/tracing-attributes/Cargo.toml
index 3cd6fda8..b93ddec1 100644
--- a/tracing-attributes/Cargo.toml
+++ b/tracing-attributes/Cargo.toml
@@ -34,17 +34,17 @@ rust-version = "1.49.0"
 proc-macro = true
 
 [dependencies]
-proc-macro2 = "1"
-syn = { version = "1.0.43", default-features = false, features = ["full", "parsing", "printing", "visit", "visit-mut", "clone-impls", "extra-traits", "proc-macro"] }
-quote = "1"
+proc-macro2 = "1.0.40"
+syn = { version = "1.0.98", default-features = false, features = ["full", "parsing", "printing", "visit", "visit-mut", "clone-impls", "extra-traits", "proc-macro"] }
+quote = "1.0.20"
 
 [dev-dependencies]
 tracing = { path = "../tracing", version = "0.2" }
 tracing-mock = { path = "../tracing-mock", features = ["tokio-test"] }
-tokio-test = { version = "0.3.0" }
+tokio-test = "0.4.2"
 tracing-core = { path = "../tracing-core", version = "0.2"}
 tracing-subscriber = { path = "../tracing-subscriber", version = "0.3", features = ["env-filter"] }
-async-trait = "0.1.44"
+async-trait = "0.1.56"
 
 [badges]
 maintenance = { status = "experimental" }
diff --git a/tracing-core/Cargo.toml b/tracing-core/Cargo.toml
index 7a2fa84f..ecf5114d 100644
--- a/tracing-core/Cargo.toml
+++ b/tracing-core/Cargo.toml
@@ -35,7 +35,7 @@ std = ["once_cell", "alloc"]
 maintenance = { status = "actively-developed" }
 
 [dependencies]
-once_cell = { version = "1.12", optional = true }
+once_cell = { version = "1.13.0", optional = true }
 
 [package.metadata.docs.rs]
 all-features = true
diff --git a/tracing-flame/Cargo.toml b/tracing-flame/Cargo.toml
index b6dfd518..351aed7d 100644
--- a/tracing-flame/Cargo.toml
+++ b/tracing-flame/Cargo.toml
@@ -28,7 +28,7 @@ smallvec = ["tracing-subscriber/smallvec"]
 [dependencies]
 tracing-subscriber = { path = "../tracing-subscriber", version = "0.3", default-features = false, features = ["registry", "fmt"] }
 tracing = { path = "../tracing", version = "0.2", default-features = false, features = ["std"] }
-once_cell = "1.12"
+once_cell = "1.13.0"
 
 [dev-dependencies]
-tempfile = "3"
+tempfile = "3.3.0"
diff --git a/tracing-futures/Cargo.toml b/tracing-futures/Cargo.toml
index 9ed895eb..3bda4cb6 100644
--- a/tracing-futures/Cargo.toml
+++ b/tracing-futures/Cargo.toml
@@ -27,16 +27,20 @@ tokio = ["tokio_01"]
 std = ["tracing/std"]
 
 [dependencies]
-futures_01 = { package = "futures", version = "0.1", optional = true }
-futures = { version = "0.3.0", optional = true }
-futures-task = { version = "0.3", optional = true }
-pin-project-lite = { version = "0.2.4", optional = true }
+futures_01 = { package = "futures", version = "0.1.31", optional = true }
+futures = { version = "0.3.21", optional = true }
+futures-task = { version = "0.3.21", optional = true }
+pin-project-lite = { version = "0.2.9", optional = true }
 tracing = { path = "../tracing", version = "0.2", default-features = false }
-tokio-executor = { version = "0.1", optional = true }
-tokio_01 = { package = "tokio", version = "0.1", optional = true }
+tokio-executor = { version = "0.1.10", optional = true }
+tokio_01 = { package = "tokio", version = "0.1.22", optional = true }
+
+# Fix minimal-versions
+tokio-threadpool = "0.1.18"
+mio = "0.6.23"
 
 [dev-dependencies]
-tokio-test = "0.4"
+tokio-test = "0.4.2"
 tracing-core = { path = "../tracing-core", version = "0.2" }
 tracing-mock = { path = "../tracing-mock", features = ["tokio-test"] }
 
diff --git a/tracing-journald/Cargo.toml b/tracing-journald/Cargo.toml
index 136a69e8..29390804 100644
--- a/tracing-journald/Cargo.toml
+++ b/tracing-journald/Cargo.toml
@@ -16,12 +16,12 @@ keywords = ["tracing", "journald"]
 rust-version = "1.49.0"
 
 [dependencies]
-libc = "0.2.107"
+libc = "0.2.126"
 tracing-core = { path = "../tracing-core", version = "0.2" }
 tracing-subscriber = { path = "../tracing-subscriber", version = "0.3", default-features = false, features = ["registry"] }
 
 [dev-dependencies]
-serde_json = "1.0.68"
-serde = { version = "1.0.130", features = ["derive"] }
+serde_json = "1.0.82"
+serde = { version = "1.0.139", features = ["derive"] }
 tracing = { path = "../tracing", version = "0.2" }
 
diff --git a/tracing-journald/src/lib.rs b/tracing-journald/src/lib.rs
index a8d88a6e..2433418c 100644
--- a/tracing-journald/src/lib.rs
+++ b/tracing-journald/src/lib.rs
@@ -158,7 +158,7 @@ impl Subscriber {
     #[cfg(not(unix))]
     fn send_payload(&self, _opayload: &[u8]) -> io::Result<()> {
         Err(io::Error::new(
-            io::ErrorKind::Unsupported,
+            io::ErrorKind::Other,
             "journald not supported on non-Unix",
         ))
     }
@@ -179,7 +179,7 @@ impl Subscriber {
     #[cfg(all(unix, not(target_os = "linux")))]
     fn send_large_payload(&self, _payload: &[u8]) -> io::Result<usize> {
         Err(io::Error::new(
-            io::ErrorKind::Unsupported,
+            io::ErrorKind::Other,
             "Large payloads not supported on non-Linux OS",
         ))
     }
diff --git a/tracing-log/Cargo.toml b/tracing-log/Cargo.toml
index 18de8c47..49764915 100644
--- a/tracing-log/Cargo.toml
+++ b/tracing-log/Cargo.toml
@@ -24,9 +24,9 @@ log-tracer = []
 
 [dependencies]
 tracing-core = { path = "../tracing-core", version = "0.2"}
-log = { version = "0.4" }
-once_cell = "1.12"
-env_logger = { version = "0.8", optional = true }
+log = "0.4.17"
+once_cell = "1.13.0"
+env_logger = { version = "0.8.4", optional = true }
 
 [dev-dependencies]
 tracing = { path = "../tracing", version = "0.2"}
diff --git a/tracing-mock/Cargo.toml b/tracing-mock/Cargo.toml
index 0dbf0411..92a9818f 100644
--- a/tracing-mock/Cargo.toml
+++ b/tracing-mock/Cargo.toml
@@ -20,7 +20,10 @@ publish = false
 [dependencies]
 tracing = { path = "../tracing", version = "0.2", default-features = false }
 tracing-core = { path = "../tracing-core", version = "0.2", default-features = false }
-tokio-test = { version = "0.4", optional = true }
+tokio-test = { version = "0.4.2", optional = true }
+
+# Fix minimal-versions; tokio-test fails with otherwise acceptable 0.1.0
+tokio-stream = "0.1.9"
 
 [package.metadata.docs.rs]
 all-features = true
diff --git a/tracing-opentelemetry/Cargo.toml b/tracing-opentelemetry/Cargo.toml
index d8ed685f..c0c8684d 100644
--- a/tracing-opentelemetry/Cargo.toml
+++ b/tracing-opentelemetry/Cargo.toml
@@ -23,20 +23,23 @@ rust-version = "1.46.0"
 default = ["tracing-log"]
 
 [dependencies]
-opentelemetry = { version = "0.17", default-features = false, features = ["trace", "metrics"] }
+opentelemetry = { version = "0.17.0", default-features = false, features = ["trace", "metrics"] }
 tracing = { path = "../tracing", version = "0.2", default-features = false, features = ["std"] }
 tracing-core = { path = "../tracing-core", version = "0.2" }
 tracing-subscriber = { path = "../tracing-subscriber", version = "0.3", default-features = false, features = ["registry", "std"] }
 tracing-log = { path = "../tracing-log", version = "0.2", default-features = false, optional = true }
-once_cell = "1"
+once_cell = "1.13.0"
+
+# Fix minimal-versions; opentelemetry specifies async-trait = "0.1" which breaks
+async-trait = "0.1.20"
 
 [dev-dependencies]
-async-trait = "0.1"
-criterion = { version = "0.3", default_features = false }
-opentelemetry-jaeger = "0.16"
-futures-util = { version = "0.3", default-features = false }
-tokio = { version = "1", features = ["full"] }
-tokio-stream = "0.1"
+async-trait = "0.1.56"
+criterion = { version = "0.3.6", default_features = false }
+opentelemetry-jaeger = "0.16.0"
+futures-util = { version = "0.3.21", default-features = false }
+tokio = { version = "1.20.0", features = ["full"] }
+tokio-stream = "0.1.9"
 
 [lib]
 bench = false
diff --git a/tracing-serde/Cargo.toml b/tracing-serde/Cargo.toml
index b2b02baa..41154f7c 100644
--- a/tracing-serde/Cargo.toml
+++ b/tracing-serde/Cargo.toml
@@ -23,11 +23,11 @@ default = ["std"]
 std = ["serde/std", "tracing-core/std"]
 
 [dependencies]
-serde = { version = "1", default-features = false, features = ["alloc"] }
+serde = { version = "1.0.139", default-features = false, features = ["alloc"] }
 tracing-core = { path = "../tracing-core", version = "0.2", default-features = false }
 
 [dev-dependencies]
-serde_json = "1"
+serde_json = "1.0.82"
 
 [badges]
 maintenance = { status = "experimental" }
diff --git a/tracing-subscriber/Cargo.toml b/tracing-subscriber/Cargo.toml
index 614b31ac..2b28d77e 100644
--- a/tracing-subscriber/Cargo.toml
+++ b/tracing-subscriber/Cargo.toml
@@ -42,38 +42,38 @@ tracing-core = { path = "../tracing-core", version = "0.2", default-features = f
 # only required by the `env-filter` feature
 tracing = { optional = true, path = "../tracing", version = "0.2", default-features = false }
 matchers = { optional = true, version = "0.1.0" }
-regex = { optional = true, version = "1", default-features = false, features = ["std"] }
-smallvec = { optional = true, version = "1" }
-once_cell = { optional = true, version = "1.12" }
+regex = { optional = true, version = "1.6.0", default-features = false, features = ["std"] }
+smallvec = { optional = true, version = "1.9.0" }
+once_cell = { optional = true, version = "1.13.0" }
 
 # fmt
 tracing-log = { path = "../tracing-log", version = "0.2", optional = true, default-features = false, features = ["log-tracer", "std"] }
-ansi_term = { version = "0.12", optional = true }
-time = { version = "0.3", features = ["formatting"], optional = true }
+ansi_term = { version = "0.12.1", optional = true }
+time = { version = "0.3.2", features = ["formatting"], optional = true }
 
 # only required by the json feature
-serde_json = { version = "1.0", optional = true }
-serde = { version = "1.0", optional = true }
+serde_json = { version = "1.0.82", optional = true }
+serde = { version = "1.0.139", optional = true }
 tracing-serde = { path = "../tracing-serde", version = "0.2", optional = true }
 
 # opt-in deps
-parking_lot = { version = ">= 0.9.0, <= 0.13", optional = true }
+parking_lot = { version = "0.12.1", optional = true }
 
 # registry
-sharded-slab = { version = "0.1.0", optional = true }
+sharded-slab = { version = "0.1.4", optional = true }
 thread_local = { version = "1.1.4", optional = true }
 
 [dev-dependencies]
 tracing = { path = "../tracing", version = "0.2" }
 tracing-mock = { path = "../tracing-mock" }
-log = "0.4"
+log = "0.4.17"
 tracing-log = { path = "../tracing-log", version = "0.2" }
-criterion = { version = "0.3", default_features = false }
-regex = { version = "1", default-features = false, features = ["std"] }
+criterion = { version = "0.3.6", default_features = false }
+regex = { version = "1.6.0", default-features = false, features = ["std"] }
 tracing-futures = { path = "../tracing-futures", version = "0.3", default-features = false, features = ["std-future", "std"] }
-tokio = { version = "1", features = ["rt", "macros"] }
+tokio = { version = "1.20.0", features = ["rt", "macros"] }
 # Enable the `time` crate's `macros` feature, for examples.
-time = { version = "0.3", features = ["formatting", "macros"] }
+time = { version = "0.3.2", features = ["formatting", "macros"] }
 
 [badges]
 maintenance = { status = "experimental" }
diff --git a/tracing-tower/Cargo.toml b/tracing-tower/Cargo.toml
index a343939f..7520c5d7 100644
--- a/tracing-tower/Cargo.toml
+++ b/tracing-tower/Cargo.toml
@@ -27,12 +27,12 @@ tower-make = [
 [dependencies]
 tracing = { path = "../tracing", version = "0.2", default-features = false, features = ["std"] }
 tracing-futures = { version = "0.3", path = "../tracing-futures", features = ["std-future"] }
-futures = "0.3"
-tower-service = "0.3"
-tower-layer = { version = "0.3", optional = true }
-tower_make = { package = "tower-make", version = "0.3", optional = true }
-pin-project-lite = { version = "0.2.4", optional = true }
-http = { version = "0.2", optional = true }
+futures = "0.3.21"
+tower-service = "0.3.2"
+tower-layer = { version = "0.3.1", optional = true }
+tower_make = { package = "tower-make", version = "0.3.0", optional = true }
+pin-project-lite = { version = "0.2.9", optional = true }
+http = { version = "0.2.8", optional = true }
 
 [badges]
 maintenance = { status = "experimental" }
diff --git a/tracing/Cargo.toml b/tracing/Cargo.toml
index 4c1f6d89..6c43ff6c 100644
--- a/tracing/Cargo.toml
+++ b/tracing/Cargo.toml
@@ -32,18 +32,18 @@ rust-version = "1.49.0"
 
 [dependencies]
 tracing-core = { path = "../tracing-core", version = "0.2", default-features = false }
-log = { version = "0.4", optional = true }
+log = { version = "0.4.17", optional = true }
 tracing-attributes = { path = "../tracing-attributes", version = "0.2", optional = true }
 cfg-if = "1.0.0"
-pin-project-lite = "0.2"
+pin-project-lite = "0.2.9"
 
 [dev-dependencies]
-criterion = { version = "0.3", default_features = false }
-log = "0.4"
+criterion = { version = "0.3.6", default_features = false }
+log = "0.4.17"
 tracing-mock = { path = "../tracing-mock" }
 
 [target.'cfg(target_arch = "wasm32")'.dev-dependencies]
-wasm-bindgen-test = "^0.3"
+wasm-bindgen-test = "0.3.31"
 
 [features]
 default = ["std", "attributes"]