diff --git a/Cargo.lock b/Cargo.lock
index 2ec41817dc..f78010f0ec 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3445,7 +3445,7 @@ checksum = "28d3b2b1366ec20994f1fd18c3c594f05c5dd4bc44d8bb0c1c632c8d6829481f"
 [[package]]
 name = "salsa"
 version = "0.21.0"
-source = "git+https://github.com/salsa-rs/salsa.git?rev=79afd59ed5a5edb4dac63cf5b6cf4a6aa9514bdf#79afd59ed5a5edb4dac63cf5b6cf4a6aa9514bdf"
+source = "git+https://github.com/salsa-rs/salsa.git?rev=42f15835c0005c4b37aaf5bc1a15e3e1b3df14b7#42f15835c0005c4b37aaf5bc1a15e3e1b3df14b7"
 dependencies = [
  "boxcar",
  "compact_str",
@@ -3468,12 +3468,12 @@ dependencies = [
 [[package]]
 name = "salsa-macro-rules"
 version = "0.21.0"
-source = "git+https://github.com/salsa-rs/salsa.git?rev=79afd59ed5a5edb4dac63cf5b6cf4a6aa9514bdf#79afd59ed5a5edb4dac63cf5b6cf4a6aa9514bdf"
+source = "git+https://github.com/salsa-rs/salsa.git?rev=42f15835c0005c4b37aaf5bc1a15e3e1b3df14b7#42f15835c0005c4b37aaf5bc1a15e3e1b3df14b7"
 
 [[package]]
 name = "salsa-macros"
 version = "0.21.0"
-source = "git+https://github.com/salsa-rs/salsa.git?rev=79afd59ed5a5edb4dac63cf5b6cf4a6aa9514bdf#79afd59ed5a5edb4dac63cf5b6cf4a6aa9514bdf"
+source = "git+https://github.com/salsa-rs/salsa.git?rev=42f15835c0005c4b37aaf5bc1a15e3e1b3df14b7#42f15835c0005c4b37aaf5bc1a15e3e1b3df14b7"
 dependencies = [
  "heck",
  "proc-macro2",
diff --git a/Cargo.toml b/Cargo.toml
index 57934aed25..039c225ff8 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -124,7 +124,7 @@ rayon = { version = "1.10.0" }
 regex = { version = "1.10.2" }
 rustc-hash = { version = "2.0.0" }
 # When updating salsa, make sure to also update the revision in `fuzz/Cargo.toml`
-salsa = { git = "https://github.com/salsa-rs/salsa.git", rev = "79afd59ed5a5edb4dac63cf5b6cf4a6aa9514bdf" }
+salsa = { git = "https://github.com/salsa-rs/salsa.git", rev = "42f15835c0005c4b37aaf5bc1a15e3e1b3df14b7" }
 schemars = { version = "0.8.16" }
 seahash = { version = "4.1.0" }
 serde = { version = "1.0.197", features = ["derive"] }
diff --git a/fuzz/Cargo.toml b/fuzz/Cargo.toml
index c8a4a9c7a4..d9c16cf9de 100644
--- a/fuzz/Cargo.toml
+++ b/fuzz/Cargo.toml
@@ -29,7 +29,7 @@ ruff_python_formatter = { path = "../crates/ruff_python_formatter" }
 ruff_text_size = { path = "../crates/ruff_text_size" }
 
 libfuzzer-sys = { git = "https://github.com/rust-fuzz/libfuzzer", default-features = false }
-salsa = { git = "https://github.com/salsa-rs/salsa.git", rev = "79afd59ed5a5edb4dac63cf5b6cf4a6aa9514bdf" }
+salsa = { git = "https://github.com/salsa-rs/salsa.git", rev = "42f15835c0005c4b37aaf5bc1a15e3e1b3df14b7" }
 similar = { version = "2.5.0" }
 tracing = { version = "0.1.40" }