8 files changed, 8 insertions, 7 deletions
diff --git a/Cargo.toml b/Cargo.toml
index 9938d419033..4f4dd83f415 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -63,6 +63,7 @@ exclude = [
 # tidy-alphabetical-start
 bitflags = "2.9.3"
 either = "1.15.0"
+indexmap = "2.10.0"
 itertools = "0.12.1"
 # FIXME: Remove this pin once this rustix issue is resolved
 # https://github.com/bytecodealliance/rustix/issues/1496
diff --git a/compiler/rustc_data_structures/Cargo.toml b/compiler/rustc_data_structures/Cargo.toml
index 580bbde1b10..949a5a9ac80 100644
--- a/compiler/rustc_data_structures/Cargo.toml
+++ b/compiler/rustc_data_structures/Cargo.toml
@@ -10,7 +10,7 @@ bitflags.workspace = true
 either.workspace = true
 elsa = "1.11.0"
 ena = "0.14.3"
-indexmap = "2.4.0"
+indexmap.workspace = true
 jobserver_crate = { version = "0.1.28", package = "jobserver" }
 measureme = "12.0.1"
 parking_lot = "0.12"
diff --git a/compiler/rustc_resolve/Cargo.toml b/compiler/rustc_resolve/Cargo.toml
index 7c5332c1662..4da4c0840df 100644
--- a/compiler/rustc_resolve/Cargo.toml
+++ b/compiler/rustc_resolve/Cargo.toml
@@ -6,7 +6,7 @@ edition = "2024"
 [dependencies]
 # tidy-alphabetical-start
 bitflags.workspace = true
-indexmap = "2.4.0"
+indexmap.workspace = true
 itertools.workspace = true
 pulldown-cmark = { version = "0.11", features = ["html"], default-features = false }
 rustc_arena = { path = "../rustc_arena" }
diff --git a/compiler/rustc_serialize/Cargo.toml b/compiler/rustc_serialize/Cargo.toml
index 7d81ef996c8..853f87ebed9 100644
--- a/compiler/rustc_serialize/Cargo.toml
+++ b/compiler/rustc_serialize/Cargo.toml
@@ -5,7 +5,7 @@ edition = "2024"
 
 [dependencies]
 # tidy-alphabetical-start
-indexmap = "2.0.0"
+indexmap.workspace = true
 rustc_hashes = { path = "../rustc_hashes" }
 smallvec = { version = "1.8.1", features = ["union", "may_dangle"] }
 thin-vec.workspace = true
diff --git a/compiler/rustc_span/Cargo.toml b/compiler/rustc_span/Cargo.toml
index 2e45177e3b7..8368c9656e2 100644
--- a/compiler/rustc_span/Cargo.toml
+++ b/compiler/rustc_span/Cargo.toml
@@ -7,7 +7,7 @@ edition = "2024"
 # tidy-alphabetical-start
 blake3 = "1.5.2"
 derive-where = "1.2.7"
-indexmap = { version = "2.0.0" }
+indexmap.workspace = true
 itoa = "1.0"
 md5 = { package = "md-5", version = "0.10.0" }
 rustc_arena = { path = "../rustc_arena" }
diff --git a/compiler/rustc_type_ir/Cargo.toml b/compiler/rustc_type_ir/Cargo.toml
index 1dba7fe4269..bcd321d0c5f 100644
--- a/compiler/rustc_type_ir/Cargo.toml
+++ b/compiler/rustc_type_ir/Cargo.toml
@@ -8,7 +8,7 @@ edition = "2024"
 bitflags.workspace = true
 derive-where = "1.2.7"
 ena = "0.14.3"
-indexmap = "2.0.0"
+indexmap.workspace = true
 rustc-hash = "2.0.0"
 rustc_ast_ir = { path = "../rustc_ast_ir", default-features = false }
 rustc_data_structures = { path = "../rustc_data_structures", optional = true }
diff --git a/src/librustdoc/Cargo.toml b/src/librustdoc/Cargo.toml
index 63ac9ba6aa9..2985971a053 100644
--- a/src/librustdoc/Cargo.toml
+++ b/src/librustdoc/Cargo.toml
@@ -12,7 +12,7 @@ path = "lib.rs"
 arrayvec = { version = "0.7", default-features = false }
 askama = { version = "0.14", default-features = false, features = ["alloc", "config", "derive"] }
 base64 = "0.21.7"
-indexmap = "2"
+indexmap.workspace = true
 itertools.workspace = true
 minifier = { version = "0.3.5", default-features = false }
 pulldown-cmark-escape = { version = "0.11.0", features = ["simd"] }
diff --git a/src/tools/compiletest/Cargo.toml b/src/tools/compiletest/Cargo.toml
index 6f21c7db487..fb71275b03c 100644
--- a/src/tools/compiletest/Cargo.toml
+++ b/src/tools/compiletest/Cargo.toml
@@ -20,7 +20,7 @@ diff = "0.1.10"
 getopts = "0.2"
 glob = "0.3.0"
 home = "0.5.5"
-indexmap = "2.0.0"
+indexmap.workspace = true
 miropt-test-tools = { path = "../miropt-test-tools" }
 rayon = "1.10.0"
 regex = "1.0"