diff --git a/Cargo.lock b/Cargo.lock
index cf4573f7..0f99096b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2192,9 +2192,9 @@ dependencies = [
  "mehen-core",
  "mehen-metrics",
  "mehen-report",
- "ruff_python_ast",
+ "ruff_python_ast 0.0.3",
  "ruff_python_parser",
- "ruff_text_size",
+ "ruff_text_size 0.0.3",
  "serde_json",
  "smol_str",
 ]
@@ -3228,6 +3228,25 @@ dependencies = [
 name = "ruff_python_ast"
 version = "0.0.3"
 source = "git+https://github.com/astral-sh/ruff?tag=0.15.20#f82a36b6baf8c0547a17bbde6c0d927ccd45d938"
+dependencies = [
+ "aho-corasick",
+ "arrayvec",
+ "bitflags",
+ "compact_str",
+ "is-macro",
+ "memchr",
+ "ruff_python_trivia 0.0.3",
+ "ruff_source_file 0.0.3",
+ "ruff_text_size 0.0.3",
+ "rustc-hash 2.1.2",
+ "thin-vec",
+ "thiserror",
+]
+
+[[package]]
+name = "ruff_python_ast"
+version = "0.0.4"
+source = "git+https://github.com/astral-sh/ruff?tag=0.15.21#3e1f63645109e69f9bccc7be354c5ee4672fb8f3"
 dependencies = [
  "aho-corasick",
  "arrayvec",
@@ -3236,9 +3255,9 @@ dependencies = [
  "get-size2",
  "is-macro",
  "memchr",
- "ruff_python_trivia",
- "ruff_source_file",
- "ruff_text_size",
+ "ruff_python_trivia 0.0.4",
+ "ruff_source_file 0.0.4",
+ "ruff_text_size 0.0.4",
  "rustc-hash 2.1.2",
  "thin-vec",
  "thiserror",
@@ -3246,17 +3265,17 @@ dependencies = [
 
 [[package]]
 name = "ruff_python_parser"
-version = "0.0.3"
-source = "git+https://github.com/astral-sh/ruff?tag=0.15.20#f82a36b6baf8c0547a17bbde6c0d927ccd45d938"
+version = "0.0.4"
+source = "git+https://github.com/astral-sh/ruff?tag=0.15.21#3e1f63645109e69f9bccc7be354c5ee4672fb8f3"
 dependencies = [
  "bitflags",
  "bstr",
  "compact_str",
  "get-size2",
  "memchr",
- "ruff_python_ast",
- "ruff_python_trivia",
- "ruff_text_size",
+ "ruff_python_ast 0.0.4",
+ "ruff_python_trivia 0.0.4",
+ "ruff_text_size 0.0.4",
  "rustc-hash 2.1.2",
  "static_assertions",
  "thin-vec",
@@ -3271,8 +3290,20 @@ version = "0.0.3"
 source = "git+https://github.com/astral-sh/ruff?tag=0.15.20#f82a36b6baf8c0547a17bbde6c0d927ccd45d938"
 dependencies = [
  "itertools 0.15.0",
- "ruff_source_file",
- "ruff_text_size",
+ "ruff_source_file 0.0.3",
+ "ruff_text_size 0.0.3",
+ "unicode-ident",
+]
+
+[[package]]
+name = "ruff_python_trivia"
+version = "0.0.4"
+source = "git+https://github.com/astral-sh/ruff?tag=0.15.21#3e1f63645109e69f9bccc7be354c5ee4672fb8f3"
+dependencies = [
+ "itertools 0.15.0",
+ "ruff_source_file 0.0.4",
+ "ruff_text_size 0.0.4",
+ "rustc-hash 2.1.2",
  "unicode-ident",
 ]
 
@@ -3282,13 +3313,27 @@ version = "0.0.3"
 source = "git+https://github.com/astral-sh/ruff?tag=0.15.20#f82a36b6baf8c0547a17bbde6c0d927ccd45d938"
 dependencies = [
  "memchr",
- "ruff_text_size",
+ "ruff_text_size 0.0.3",
+]
+
+[[package]]
+name = "ruff_source_file"
+version = "0.0.4"
+source = "git+https://github.com/astral-sh/ruff?tag=0.15.21#3e1f63645109e69f9bccc7be354c5ee4672fb8f3"
+dependencies = [
+ "memchr",
+ "ruff_text_size 0.0.4",
 ]
 
 [[package]]
 name = "ruff_text_size"
 version = "0.0.3"
 source = "git+https://github.com/astral-sh/ruff?tag=0.15.20#f82a36b6baf8c0547a17bbde6c0d927ccd45d938"
+
+[[package]]
+name = "ruff_text_size"
+version = "0.0.4"
+source = "git+https://github.com/astral-sh/ruff?tag=0.15.21#3e1f63645109e69f9bccc7be354c5ee4672fb8f3"
 dependencies = [
  "get-size2",
 ]
diff --git a/crates/mehen-python/Cargo.toml b/crates/mehen-python/Cargo.toml
index dc3dda3e..4c565f80 100644
--- a/crates/mehen-python/Cargo.toml
+++ b/crates/mehen-python/Cargo.toml
@@ -18,7 +18,7 @@ mehen-metrics = { workspace = true }
 # unpublished upstream (`publish = false`), so we pin a tagged git
 # revision. All three crates must stay in lockstep so derive macros
 # and AST types align — bump them together.
-ruff_python_parser = { git = "https://github.com/astral-sh/ruff", tag = "0.15.20" }
+ruff_python_parser = { git = "https://github.com/astral-sh/ruff", tag = "0.15.21" }
 ruff_python_ast = { git = "https://github.com/astral-sh/ruff", tag = "0.15.20" }
 ruff_text_size = { git = "https://github.com/astral-sh/ruff", tag = "0.15.20" }
 smol_str = { workspace = true }