diff --git a/Cargo.lock b/Cargo.lock
index 1ea051c20..ad2ff49bf 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1314,9 +1314,9 @@ dependencies = [
 
 [[package]]
 name = "mailchecker"
-version = "5.0.2"
+version = "5.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "07908bfefc00d18a2f359f2b6479217128b362b06f170addfbe68bc6c1430e0d"
+checksum = "8407d61c7991fa86e04db25008bd333418e421a8ebf01ac4bde6b128f6c73099"
 dependencies = [
  "fast_chemail",
  "once_cell",
diff --git a/core/Cargo.toml b/core/Cargo.toml
index 16c575f1f..67e952a15 100644
--- a/core/Cargo.toml
+++ b/core/Cargo.toml
@@ -22,7 +22,7 @@ fantoccini = { version = "0.19.3", optional = true }
 futures = { version = "0.3.24", optional = true }
 fast-socks5 = "0.8.1"
 log = "0.4.17"
-mailchecker = "5.0.2"
+mailchecker = "5.0.3"
 rand = { version = "0.8.5", features = ["small_rng"] }
 regex = "1.6.0"
 reqwest = { version = "0.11.12", features = ["json", "socks"] }