diff --git a/engine/Cargo.lock b/engine/Cargo.lock
index 9dff503..7abba38 100644
--- a/engine/Cargo.lock
+++ b/engine/Cargo.lock
@@ -181,18 +181,18 @@ checksum = "72b3254f16251a8381aa12e40e3c4d2f0199f8c6508fbecb9d91f575e0fbb8c6"
 
 [[package]]
 name = "bit-set"
-version = "0.5.3"
+version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0700ddab506f33b20a03b13996eccd309a48e5ff77d0d95926aa0210fb4e95f1"
+checksum = "08807e080ed7f9d5433fa9b275196cfc35414f66a0c79d864dc51a0d825231a3"
 dependencies = [
  "bit-vec",
 ]
 
 [[package]]
 name = "bit-vec"
-version = "0.6.3"
+version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "349f9b6a179ed607305526ca489b34ad0a41aed5f7980fa90eb03160b69598fb"
+checksum = "5e764a1d40d510daf35e07be9eb06e75770908c27d411ee6c92109c9840eaaf7"
 
 [[package]]
 name = "bitflags"
@@ -403,9 +403,9 @@ dependencies = [
 
 [[package]]
 name = "fancy-regex"
-version = "0.13.0"
+version = "0.19.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "531e46835a22af56d1e3b66f04844bed63158bc094a628bec1d321d9b4c44bf2"
+checksum = "52e0387578e845beb7a1acff126228499f26cb18edf12919cc513bb863266464"
 dependencies = [
  "bit-set",
  "regex-automata",
diff --git a/engine/Cargo.toml b/engine/Cargo.toml
index 3d540aa..b95bc59 100644
--- a/engine/Cargo.toml
+++ b/engine/Cargo.toml
@@ -18,7 +18,7 @@ anyhow = "1"
 clap = { version = "4", features = ["derive"] }
 # The GPT-2 pre-tokenizer pattern uses a negative lookahead, which the standard
 # regex crate does not support.
-fancy-regex = "0.13"
+fancy-regex = "0.19"
 
 # CUDA via the driver API. Kernels are compiled at runtime with NVRTC rather
 # than offline with nvcc: CUDA 13's headers conflict with glibc 2.43 on Ubuntu