diff --git a/Cargo.lock b/Cargo.lock
index 53457f6061..d2ce965cd6 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2139,7 +2139,6 @@ dependencies = [
  "rustc-hash",
  "rustpython-common",
  "rustpython-parser",
- "serde",
  "smallvec",
 ]
 
@@ -2269,7 +2268,7 @@ dependencies = [
 [[package]]
 name = "rustpython-ast"
 version = "0.2.0"
-source = "git+https://github.com/RustPython/RustPython.git?rev=1871a1632e310985414211222f5bf8069678892f#1871a1632e310985414211222f5bf8069678892f"
+source = "git+https://github.com/RustPython/RustPython.git?rev=c15f670f2c30cfae6b41a1874893590148c74bc4#c15f670f2c30cfae6b41a1874893590148c74bc4"
 dependencies = [
  "num-bigint",
  "rustpython-compiler-core",
@@ -2278,7 +2277,7 @@ dependencies = [
 [[package]]
 name = "rustpython-common"
 version = "0.2.0"
-source = "git+https://github.com/RustPython/RustPython.git?rev=1871a1632e310985414211222f5bf8069678892f#1871a1632e310985414211222f5bf8069678892f"
+source = "git+https://github.com/RustPython/RustPython.git?rev=c15f670f2c30cfae6b41a1874893590148c74bc4#c15f670f2c30cfae6b41a1874893590148c74bc4"
 dependencies = [
  "ascii",
  "bitflags",
@@ -2303,7 +2302,7 @@ dependencies = [
 [[package]]
 name = "rustpython-compiler-core"
 version = "0.2.0"
-source = "git+https://github.com/RustPython/RustPython.git?rev=1871a1632e310985414211222f5bf8069678892f#1871a1632e310985414211222f5bf8069678892f"
+source = "git+https://github.com/RustPython/RustPython.git?rev=c15f670f2c30cfae6b41a1874893590148c74bc4#c15f670f2c30cfae6b41a1874893590148c74bc4"
 dependencies = [
  "bitflags",
  "bstr 0.2.17",
@@ -2317,7 +2316,7 @@ dependencies = [
 [[package]]
 name = "rustpython-parser"
 version = "0.2.0"
-source = "git+https://github.com/RustPython/RustPython.git?rev=1871a1632e310985414211222f5bf8069678892f#1871a1632e310985414211222f5bf8069678892f"
+source = "git+https://github.com/RustPython/RustPython.git?rev=c15f670f2c30cfae6b41a1874893590148c74bc4#c15f670f2c30cfae6b41a1874893590148c74bc4"
 dependencies = [
  "ahash",
  "anyhow",
diff --git a/Cargo.toml b/Cargo.toml
index b69490fbe6..d8723972f0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -26,11 +26,11 @@ proc-macro2 = { version = "1.0.51" }
 quote = { version = "1.0.23" }
 regex = { version = "1.7.1" }
 rustc-hash = { version = "1.1.0" }
-rustpython-common = { git = "https://github.com/RustPython/RustPython.git", rev = "1871a1632e310985414211222f5bf8069678892f" }
+rustpython-common = { git = "https://github.com/RustPython/RustPython.git", rev = "c15f670f2c30cfae6b41a1874893590148c74bc4" }
 rustpython-parser = { features = [
   "lalrpop",
   "serde",
-], git = "https://github.com/RustPython/RustPython.git", rev = "1871a1632e310985414211222f5bf8069678892f" }
+], git = "https://github.com/RustPython/RustPython.git", rev = "c15f670f2c30cfae6b41a1874893590148c74bc4" }
 schemars = { version = "0.8.12" }
 serde = { version = "1.0.152", features = ["derive"] }
 serde_json = { version = "1.0.93" }
diff --git a/crates/ruff_python_ast/Cargo.toml b/crates/ruff_python_ast/Cargo.toml
index 44df6c5fb9..087bcaabb9 100644
--- a/crates/ruff_python_ast/Cargo.toml
+++ b/crates/ruff_python_ast/Cargo.toml
@@ -24,6 +24,4 @@ regex = { workspace = true }
 rustc-hash = { workspace = true }
 rustpython-common = { workspace = true }
 rustpython-parser = { workspace = true }
-# TODO(charlie): See https://github.com/RustPython/RustPython/pull/4684.
-serde = { workspace = true }
 smallvec = { version = "1.10.0" }