diff --git a/Cargo.lock b/Cargo.lock
index 437e0c1ab95..11d20d25afa 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4784,9 +4784,9 @@ dependencies = [
 
 [[package]]
 name = "toml"
-version = "0.5.8"
+version = "0.5.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a31142970826733df8241ef35dc040ef98c679ab14d7c3e54d827099b3acecaa"
+checksum = "8d82e1a7758622a465f8cee077614c73484dac5b836c02ff6a40d5d1010324d7"
 dependencies = [
  "serde",
 ]
diff --git a/gateway/Cargo.toml b/gateway/Cargo.toml
index 14a771e0d43..3566dfcf9b7 100644
--- a/gateway/Cargo.toml
+++ b/gateway/Cargo.toml
@@ -17,7 +17,7 @@ serde = { version = "1.0", features = ["derive"] }
 slog-dtrace = "0.2"
 structopt = "0.3"
 thiserror = "1.0.30"
-toml = "0.5.6"
+toml = "0.5.9"
 uuid = "0.8"
 
 gateway-messages = { path = "../gateway-messages", features = ["std"] }
diff --git a/nexus/Cargo.toml b/nexus/Cargo.toml
index 8c8ff68486c..4ff012bc8ca 100644
--- a/nexus/Cargo.toml
+++ b/nexus/Cargo.toml
@@ -50,7 +50,7 @@ slog-dtrace = "0.2"
 structopt = "0.3"
 tempfile = "3.3"
 thiserror = "1.0"
-toml = "0.5.6"
+toml = "0.5.9"
 tough = { version = "0.12", features = [ "http" ] }
 usdt = "0.3.1"
 
diff --git a/oximeter/collector/Cargo.toml b/oximeter/collector/Cargo.toml
index 3e1886545a3..7b33fe02c0e 100644
--- a/oximeter/collector/Cargo.toml
+++ b/oximeter/collector/Cargo.toml
@@ -18,7 +18,7 @@ slog-dtrace = "0.2"
 structopt = "0.3"
 thiserror = "1.0.30"
 tokio = "1.17"
-toml = "0.5.8"
+toml = "0.5.9"
 uuid = { version = "0.8.2", features = [ "v4", "serde" ] }
 
 [dev-dependencies]
diff --git a/package/Cargo.toml b/package/Cargo.toml
index 80726e900d3..23482f39f31 100644
--- a/package/Cargo.toml
+++ b/package/Cargo.toml
@@ -24,7 +24,7 @@ tar = "0.4"
 tempfile = "3.3"
 thiserror = "1.0"
 tokio = { version = "1.17", features = [ "full" ] }
-toml = "0.5.6"
+toml = "0.5.9"
 walkdir = "2.3"
 
 # Disable doc builds by default for our binaries to work around issue
diff --git a/sled-agent/Cargo.toml b/sled-agent/Cargo.toml
index c557ad53e0b..7faf6b1866f 100644
--- a/sled-agent/Cargo.toml
+++ b/sled-agent/Cargo.toml
@@ -40,7 +40,7 @@ tempfile = "3.3"
 thiserror = "1.0"
 tokio = { version = "1.17", features = [ "full" ] }
 tokio-util = { version = "0.7", features = ["codec"] }
-toml = "0.5.6"
+toml = "0.5.9"
 uuid = { version = "0.8", features = [ "serde", "v4" ] }
 vsss-rs = { version = "2.0.0-pre0", default-features = false, features = ["std"] }
 zone = "0.1"
diff --git a/sp-sim/Cargo.toml b/sp-sim/Cargo.toml
index b4b76e17894..7ad4d9d1e5e 100644
--- a/sp-sim/Cargo.toml
+++ b/sp-sim/Cargo.toml
@@ -14,7 +14,7 @@ omicron-common = { path = "../common" }
 slog-dtrace = "0.2"
 structopt = "0.3"
 thiserror = "1.0"
-toml = "0.5.6"
+toml = "0.5.9"
 
 [dependencies.serde]
 version = "1.0"