diff --git a/Cargo.lock b/Cargo.lock
index 8d0223d7d..a920ab79b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2145,11 +2145,11 @@ dependencies = [
 
 [[package]]
 name = "mailparse"
-version = "0.13.2"
+version = "0.13.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "31de1f9043c582efde7dbd93de56600df12b6c4488a67eeaefa74ea364019b22"
+checksum = "62db73ff1a42b0e3a8858cf0d5c183bdfc23491f7294ae4a8200c83577457386"
 dependencies = [
- "base64 0.12.3",
+ "base64 0.13.0",
  "charset",
  "quoted_printable",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index 45e228ea1..0c4973571 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -42,7 +42,7 @@ kamadak-exif = "0.5"
 lettre_email = { git = "https://github.com/deltachat/lettre", branch = "master" }
 libc = "0.2.51"
 log = {version = "0.4.8", optional = true }
-mailparse = "0.13.0"
+mailparse = "0.13.4"
 native-tls = "0.2.3"
 num_cpus = "1.13.0"
 num-derive = "0.3.0"