diff --git a/tracing-subscriber/Cargo.toml b/tracing-subscriber/Cargo.toml
index 5553fd8737..fa2b083b30 100644
--- a/tracing-subscriber/Cargo.toml
+++ b/tracing-subscriber/Cargo.toml
@@ -43,7 +43,7 @@ tracing-core = { path = "../tracing-core", version = "0.1.30", default-features
 # only required by the filter feature
 tracing = { optional = true, path = "../tracing", version = "0.1.35", default-features = false }
 matchers = { optional = true, version = "0.1.0" }
-regex = { optional = true, version = "1", default-features = false, features = ["std"] }
+regex = { optional = true, version = "1.6.0", default-features = false, features = ["std", "unicode-case", "unicode-perl"] }
 smallvec = { optional = true, version = "1.9.0" }
 once_cell = { optional = true, version = "1.13.0" }