diff --git a/Cargo.lock b/Cargo.lock
index 84a668b5188..bdbafb8623b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4228,7 +4228,6 @@ dependencies = [
  "measureme",
  "memoffset",
  "rustc-rayon-core",
- "rustc_ast",
  "rustc_data_structures",
  "rustc_errors",
  "rustc_hir",
@@ -4437,15 +4436,12 @@ dependencies = [
 name = "rustc_traits"
 version = "0.0.0"
 dependencies = [
- "rustc_ast",
  "rustc_data_structures",
  "rustc_hir",
  "rustc_infer",
  "rustc_middle",
  "rustc_span",
- "rustc_target",
  "rustc_trait_selection",
- "smallvec",
  "tracing",
 ]
 
diff --git a/compiler/rustc_query_impl/Cargo.toml b/compiler/rustc_query_impl/Cargo.toml
index ac697a3ae3e..a44dd5ede2f 100644
--- a/compiler/rustc_query_impl/Cargo.toml
+++ b/compiler/rustc_query_impl/Cargo.toml
@@ -9,7 +9,6 @@ edition = "2021"
 [dependencies]
 field-offset = "0.3.5"
 measureme = "10.0.0"
-rustc_ast = { path = "../rustc_ast" }
 rustc_data_structures = { path = "../rustc_data_structures" }
 rustc_errors = { path = "../rustc_errors" }
 rustc_hir = { path = "../rustc_hir" }
diff --git a/compiler/rustc_traits/Cargo.toml b/compiler/rustc_traits/Cargo.toml
index 37e00c0e4bc..0cdc978a3d0 100644
--- a/compiler/rustc_traits/Cargo.toml
+++ b/compiler/rustc_traits/Cargo.toml
@@ -8,9 +8,6 @@ tracing = "0.1"
 rustc_middle = { path = "../rustc_middle" }
 rustc_data_structures = { path = "../rustc_data_structures" }
 rustc_hir = { path = "../rustc_hir" }
-rustc_ast = { path = "../rustc_ast" }
 rustc_span = { path = "../rustc_span" }
-rustc_target = { path = "../rustc_target" }
-smallvec = { version = "1.8.1", features = ["union", "may_dangle"] }
 rustc_infer = { path = "../rustc_infer" }
 rustc_trait_selection = { path = "../rustc_trait_selection" }