diff --git a/Cargo.lock b/Cargo.lock
index d02cab38ae8f3..27b6adb037fb2 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -5501,9 +5501,9 @@ checksum = "b1141d4d61095b28419e22cb0bbf02755f5e54e0526f97f1e3d1d160e60885fb"
 
 [[package]]
 name = "thin-vec"
-version = "0.2.9"
+version = "0.2.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ceb05e71730d396f960f8f3901cdb41be2d339b303e9d7d3a07c5ff0536e671b"
+checksum = "aac81b6fd6beb5884b0cf3321b8117e6e5d47ecb6fc89f414cfdcca8b2fe2dd8"
 
 [[package]]
 name = "thiserror"
diff --git a/compiler/rustc_data_structures/Cargo.toml b/compiler/rustc_data_structures/Cargo.toml
index 0366fb0a148c7..58ebfbd3124ea 100644
--- a/compiler/rustc_data_structures/Cargo.toml
+++ b/compiler/rustc_data_structures/Cargo.toml
@@ -29,7 +29,7 @@ smallvec = { version = "1.8.1", features = [
 stable_deref_trait = "1.0.0"
 stacker = "0.1.15"
 tempfile = "3.2"
-thin-vec = "0.2.9"
+thin-vec = "0.2.12"
 tracing = "0.1"
 
 [dependencies.parking_lot]