diff --git a/Cargo.lock b/Cargo.lock
index b15628b..8c26de5 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1269,16 +1269,16 @@ dependencies = [
 
 [[package]]
 name = "prometheus"
-version = "0.11.0"
+version = "0.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c8425533e7122f0c3cc7a37e6244b16ad3a2cc32ae7ac6276e2a75da0d9c200d"
+checksum = "5986aa8d62380092d2f50f8b1cdba9cb9b6731ffd4b25b51fd126b6c3e05b99c"
 dependencies = [
  "cfg-if",
  "fnv",
  "lazy_static",
+ "memchr",
  "parking_lot",
  "protobuf",
- "regex",
  "thiserror",
 ]
 
diff --git a/Cargo.toml b/Cargo.toml
index 4f81444..e9ce303 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -16,7 +16,7 @@ path = "src/main.rs"
 [dependencies]
 hyper = { version = "0.14", features = ["stream", "http1", "http2", "server", "runtime"] }
 lazy_static = "1.4"
-prometheus = "0.11"
+prometheus = "0.12"
 tracing = "0.1"
 tracing-subscriber = { version = "0.2", features = ["parking_lot"] }
 tracing-futures = { version = "0.2", features = ["futures-03"] }