diff --git a/Cargo.lock b/Cargo.lock
index 177b5c0..0c8c12e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -887,9 +887,9 @@ dependencies = [
 
 [[package]]
 name = "mail-parser"
-version = "0.9.3"
+version = "0.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ed5a1335c3a964788c90cb42ae04a34b5f2628e89566949ce3bd4ada695c0bcd"
+checksum = "93c3b9e5d8b17faf573330bbc43b37d6e918c0a3bf8a88e7d0a220ebc84af9fc"
 dependencies = [
  "encoding_rs",
  "serde",
diff --git a/Cargo.toml b/Cargo.toml
index 39afc0a..de4eda4 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -20,7 +20,7 @@ include = [
 ]
 
 [dependencies]
-mail-parser = { version = "0.9.3", features = ["serde", "serde_support"] }
+mail-parser = { version = "0.9.4", features = ["serde", "serde_support"] }
 nom = "7.1.3" # not directly required, pinned for rust future compatibility
 num_cpus = "1.15.0"
 regex = { version = "1.10.5", features = ["std"] }