diff --git a/Cargo.lock b/Cargo.lock
index 0342f1913d9a9..ea5a6900ef309 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -7672,11 +7672,11 @@ dependencies = [
 
 [[package]]
 name = "serde-toml-merge"
-version = "0.3.1"
+version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a78072b550e5c20bc4a9d1384be28809cbdb7b25b2b4707ddc6d908b7e6de3bf"
+checksum = "250c08954c1c279a877fd44909e7c50d366082d301d23821353f8b9327baf648"
 dependencies = [
- "toml 0.7.8",
+ "toml 0.8.0",
 ]
 
 [[package]]
@@ -8820,7 +8820,19 @@ dependencies = [
  "serde",
  "serde_spanned",
  "toml_datetime",
- "toml_edit",
+ "toml_edit 0.19.15",
+]
+
+[[package]]
+name = "toml"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c226a7bba6d859b63c92c4b4fe69c5b6b72d0cb897dbc8e6012298e6154cb56e"
+dependencies = [
+ "serde",
+ "serde_spanned",
+ "toml_datetime",
+ "toml_edit 0.20.0",
 ]
 
 [[package]]
@@ -8845,6 +8857,19 @@ dependencies = [
  "winnow",
 ]
 
+[[package]]
+name = "toml_edit"
+version = "0.20.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8ff63e60a958cefbb518ae1fd6566af80d9d4be430a33f3723dfc47d1d411d95"
+dependencies = [
+ "indexmap 2.0.0",
+ "serde",
+ "serde_spanned",
+ "toml_datetime",
+ "winnow",
+]
+
 [[package]]
 name = "tonic"
 version = "0.9.2"
@@ -9549,7 +9574,7 @@ dependencies = [
  "serde_yaml 0.9.25",
  "sha2",
  "tempfile",
- "toml 0.7.8",
+ "toml 0.8.0",
 ]
 
 [[package]]
@@ -9725,7 +9750,7 @@ dependencies = [
  "tokio-test",
  "tokio-tungstenite 0.20.0",
  "tokio-util",
- "toml 0.7.8",
+ "toml 0.8.0",
  "tonic 0.10.0",
  "tonic-build 0.10.0",
  "tower",
@@ -9872,7 +9897,7 @@ dependencies = [
  "serde_json",
  "serde_with 3.3.0",
  "snafu",
- "toml 0.7.8",
+ "toml 0.8.0",
  "tracing 0.1.37",
  "url",
  "vector-config-common",
@@ -9974,7 +9999,7 @@ dependencies = [
  "tokio-stream",
  "tokio-test",
  "tokio-util",
- "toml 0.7.8",
+ "toml 0.8.0",
  "tonic 0.10.0",
  "tower",
  "tracing 0.1.37",
diff --git a/Cargo.toml b/Cargo.toml
index ad87df3fa6bf6..742c1bfd69ce4 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -201,7 +201,7 @@ tower = { version = "0.4.13", default-features = false, features = ["buffer", "l
 tower-http = { version = "0.4.4", default-features = false, features = ["decompression-gzip"]}
 # Serde
 serde = { version = "1.0.188", default-features = false, features = ["derive"] }
-serde-toml-merge = { version = "0.3.0", default-features = false }
+serde-toml-merge = { version = "0.3.2", default-features = false }
 serde_bytes = { version = "0.11.12", default-features = false, features = ["std"], optional = true }
 serde_json = { version = "1.0.106", default-features = false, features = ["raw_value"] }
 serde_with = { version = "3.3.0", default-features = false, features = ["macros", "std"] }
@@ -321,7 +321,7 @@ syslog = { version = "6.1.0", default-features = false, optional = true }
 tikv-jemallocator = { version = "0.5.4", default-features = false, optional = true }
 tokio-postgres = { version = "0.7.10", default-features = false, features = ["runtime", "with-chrono-0_4"], optional = true }
 tokio-tungstenite = {version = "0.20.0", default-features = false, features = ["connect"], optional = true}
-toml = { version = "0.7.8", default-features = false, features = ["parse", "display"] }
+toml = { version = "0.8.0", default-features = false, features = ["parse", "display"] }
 tonic = { version = "0.10", optional = true, default-features = false, features = ["transport", "codegen", "prost", "tls", "tls-roots", "gzip"] }
 trust-dns-proto = { version = "0.23.0", default-features = false, features = ["dnssec"], optional = true }
 typetag = { version = "0.2.13", default-features = false }
diff --git a/lib/vector-config/Cargo.toml b/lib/vector-config/Cargo.toml
index fa2ccb0fa9984..50c5f8abf7801 100644
--- a/lib/vector-config/Cargo.toml
+++ b/lib/vector-config/Cargo.toml
@@ -22,7 +22,7 @@ serde = { version = "1.0", default-features = false }
 serde_json = { version = "1.0", default-features = false, features = ["std"] }
 serde_with = { version = "3.3.0", default-features = false, features = ["std"] }
 snafu = { version = "0.7.5", default-features = false }
-toml = { version = "0.7.8", default-features = false }
+toml = { version = "0.8.0", default-features = false }
 tracing = { version = "0.1.34", default-features = false }
 url = { version = "2.4.1", default-features = false, features = ["serde"] }
 http = { version = "0.2.9", default-features = false }
diff --git a/lib/vector-core/Cargo.toml b/lib/vector-core/Cargo.toml
index cd322b114d489..8d005ce2de5d5 100644
--- a/lib/vector-core/Cargo.toml
+++ b/lib/vector-core/Cargo.toml
@@ -51,7 +51,7 @@ tokio = { version = "1.32.0", default-features = false, features = ["net"] }
 tokio-openssl = { version = "0.6.3", default-features = false }
 tokio-stream = { version = "0.1", default-features = false, features = ["time"], optional = true }
 tokio-util = { version = "0.7.0", default-features = false, features = ["time"] }
-toml = { version = "0.7.8", default-features = false }
+toml = { version = "0.8.0", default-features = false }
 tonic = { version = "0.10", default-features = false, features = ["transport"] }
 tower = { version = "0.4", default-features = false, features = ["util"] }
 tracing = { version = "0.1.34", default-features = false }
@@ -87,7 +87,7 @@ quickcheck_macros = "1"
 proptest = "1.2"
 similar-asserts = "1.5.0"
 tokio-test = "0.4.3"
-toml = { version = "0.7.8", default-features = false, features = ["parse"] }
+toml = { version = "0.8.0", default-features = false, features = ["parse"] }
 ndarray = "0.15.6"
 ndarray-stats = "0.5.1"
 noisy_float = "0.2.0"
diff --git a/vdev/Cargo.toml b/vdev/Cargo.toml
index dd6bbf3d63c6e..9756e8c536721 100644
--- a/vdev/Cargo.toml
+++ b/vdev/Cargo.toml
@@ -37,4 +37,4 @@ serde_json = "1.0.106"
 serde_yaml = "0.9.25"
 sha2 = "0.10.7"
 tempfile = "3.6.0"
-toml = { version = "0.7.8", default-features = false, features = ["parse"] }
+toml = { version = "0.8.0", default-features = false, features = ["parse"] }