diff --git a/Cargo.lock b/Cargo.lock
index 27daf1c0f69..9db634b93f1 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -417,7 +417,7 @@ dependencies = [
  "tempfile",
  "thiserror 1.0.69",
  "time",
- "toml 0.8.19",
+ "toml",
  "toml_edit",
  "tracing",
  "tracing-chrome",
@@ -578,7 +578,7 @@ dependencies = [
  "serde-untagged",
  "serde-value",
  "thiserror 1.0.69",
- "toml 0.8.19",
+ "toml",
  "unicode-xid",
  "url",
 ]
@@ -1084,7 +1084,7 @@ dependencies = [
  "petgraph",
  "rayon",
  "serde",
- "toml 0.5.11",
+ "toml",
 ]
 
 [[package]]
@@ -2299,7 +2299,7 @@ dependencies = [
  "smallvec",
  "static_assertions",
  "target-spec",
- "toml 0.5.11",
+ "toml",
 ]
 
 [[package]]
@@ -2338,7 +2338,7 @@ dependencies = [
  "semver",
  "serde",
  "serde_json",
- "toml 0.5.11",
+ "toml",
 ]
 
 [[package]]
@@ -2354,7 +2354,6 @@ dependencies = [
  "clap_builder",
  "getrandom",
  "include_dir",
- "indexmap 1.9.3",
  "libc",
  "log",
  "miette",
@@ -2372,7 +2371,9 @@ dependencies = [
  "serde_json",
  "syn 2.0.96",
  "textwrap 0.16.0",
- "toml 0.5.11",
+ "toml",
+ "toml_datetime",
+ "toml_edit",
  "winapi",
  "windows-sys 0.52.0",
  "windows-sys 0.59.0",
@@ -2404,7 +2405,7 @@ dependencies = [
  "serde",
  "tabular",
  "target-spec",
- "toml 0.5.11",
+ "toml",
  "toml_edit",
  "twox-hash",
 ]
@@ -4043,7 +4044,7 @@ dependencies = [
  "serde_json",
  "target-lexicon",
  "test-case",
- "toml 0.5.11",
+ "toml",
  "unicode-ident",
 ]
 
@@ -4252,22 +4253,13 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"
 
-[[package]]
-name = "toml"
-version = "0.5.11"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f4f7f0dd8d50a853a531c426359045b1998f04219d88799810762cd4ad314234"
-dependencies = [
- "indexmap 1.9.3",
- "serde",
-]
-
 [[package]]
 name = "toml"
 version = "0.8.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a1ed1f98e3fdc28d6d910e6737ae6ab1a93bf1985935a1193e68f93eeb68d24e"
 dependencies = [
+ "indexmap 2.7.1",
  "serde",
  "serde_spanned",
  "toml_datetime",
diff --git a/guppy-summaries/Cargo.toml b/guppy-summaries/Cargo.toml
index b60c2e06160..1a5b27a6774 100644
--- a/guppy-summaries/Cargo.toml
+++ b/guppy-summaries/Cargo.toml
@@ -29,7 +29,7 @@ ahash = "0.8.11"
 camino = { version = "1.1.9", features = ["serde1"] }
 cfg-if = "1.0.0"
 diffus = "0.10.0"
-toml = { version = "0.5.11", features = ["preserve_order"] }
+toml = { version = "0.8.19", features = ["preserve_order"] }
 semver = { version = "1.0.25", features = ["serde"] }
 serde = { version = "1.0.217", features = ["derive"] }
 guppy-workspace-hack.workspace = true
diff --git a/guppy/Cargo.toml b/guppy/Cargo.toml
index d8866079c21..5f6feb049f9 100644
--- a/guppy/Cargo.toml
+++ b/guppy/Cargo.toml
@@ -51,7 +51,7 @@ serde_json = "1.0.137"
 smallvec = "1.13.2"
 static_assertions = "1.1.0"
 target-spec = { version = "3.3.1", path = "../target-spec" }
-toml = { version = "0.5.11", optional = true, features = ["preserve_order"] }
+toml = { version = "0.8.19", optional = true, features = ["preserve_order"] }
 guppy-workspace-hack.workspace = true
 
 [dev-dependencies]
diff --git a/target-spec/Cargo.toml b/target-spec/Cargo.toml
index 74d7eacefbf..fd91c5128cf 100644
--- a/target-spec/Cargo.toml
+++ b/target-spec/Cargo.toml
@@ -30,7 +30,7 @@ guppy-workspace-hack.workspace = true
 
 [dev-dependencies]
 test-case = "3.3.1"
-toml = "0.5.11"
+toml = "0.8.19"
 
 [features]
 custom = ["dep:serde", "dep:serde_json"]
diff --git a/tools/determinator/Cargo.toml b/tools/determinator/Cargo.toml
index e717e60a9b5..c8ebaffaf25 100644
--- a/tools/determinator/Cargo.toml
+++ b/tools/determinator/Cargo.toml
@@ -38,7 +38,7 @@ petgraph = { version = "0.6.5", default-features = false, features = [
 ] }
 rayon = "1.10.0"
 serde = { version = "1.0.217", features = ["derive"] }
-toml = "0.5.11"
+toml = "0.8.19"
 guppy-workspace-hack.workspace = true
 
 [dev-dependencies]
diff --git a/tools/hakari/Cargo.toml b/tools/hakari/Cargo.toml
index 591c89d3a8e..4878e94fc53 100644
--- a/tools/hakari/Cargo.toml
+++ b/tools/hakari/Cargo.toml
@@ -44,7 +44,7 @@ rayon = "1.10.0"
 serde = { version = "1.0.217", features = ["derive"], optional = true }
 tabular = { version = "0.2.0", features = ["ansi-cell"], optional = true }
 target-spec = { version = "3.3.1", path = "../../target-spec" }
-toml = { version = "0.5.11", optional = true }
+toml = { version = "0.8.19", optional = true }
 toml_edit = "0.22.22"
 twox-hash = { version = "1.6.3", default-features = false }
 guppy-workspace-hack.workspace = true
diff --git a/workspace-hack/Cargo.toml b/workspace-hack/Cargo.toml
index aebdc3d0caf..071d5bbba10 100644
--- a/workspace-hack/Cargo.toml
+++ b/workspace-hack/Cargo.toml
@@ -26,7 +26,6 @@ clap = { version = "4.5.22", features = ["derive"] }
 clap_builder = { version = "4.5.22", default-features = false, features = ["color", "help", "std", "suggestions", "usage"] }
 getrandom = { version = "0.2.15", default-features = false, features = ["std"] }
 include_dir = { version = "0.7.4", features = ["glob"] }
-indexmap = { version = "1.9.3", default-features = false, features = ["std"] }
 log = { version = "0.4.25", default-features = false, features = ["std"] }
 miette = { version = "7.4.0", features = ["fancy"] }
 num-traits = { version = "0.2.19" }
@@ -39,7 +38,9 @@ regex-syntax = { version = "0.8.5" }
 serde = { version = "1.0.217", features = ["alloc", "derive"] }
 serde_json = { version = "1.0.137", features = ["unbounded_depth"] }
 textwrap = { version = "0.16.0", default-features = false, features = ["unicode-linebreak", "unicode-width"] }
-toml = { version = "0.5.11", features = ["preserve_order"] }
+toml = { version = "0.8.19", features = ["preserve_order"] }
+toml_datetime = { version = "0.6.8", default-features = false, features = ["serde"] }
+toml_edit = { version = "0.22.22", features = ["serde"] }
 zerocopy = { version = "0.7.32", features = ["derive", "simd"] }
 
 [build-dependencies]