diff --git a/Cargo.lock b/Cargo.lock
index 4438844..b322ef4 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -108,6 +108,12 @@ version = "0.13.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9e1b586273c5702936fe7b7d6896644d8be71e6314cfe09d3167c95f712589e8"
 
+[[package]]
+name = "base64"
+version = "0.20.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0ea22880d78093b0cbe17c89f64a7d457941e65759157ec6cb31a31d652b05e5"
+
 [[package]]
 name = "binrw"
 version = "0.10.0"
@@ -1589,7 +1595,7 @@ version = "0.11.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "68cc60575865c7831548863cc02356512e3f1dc2f3f82cb837d7fc4cc8f3c97c"
 dependencies = [
- "base64",
+ "base64 0.13.1",
  "bytes",
  "encoding_rs",
  "futures-core",
@@ -1701,7 +1707,7 @@ dependencies = [
  "aes256ctr_poly1305aes",
  "anyhow",
  "backoff",
- "base64",
+ "base64 0.20.0",
  "binrw",
  "bytes",
  "bytesize",
@@ -1775,7 +1781,7 @@ version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0864aeff53f8c05aa08d86e5ef839d3dfcf07aeba2db32f12db0ef716e87bd55"
 dependencies = [
- "base64",
+ "base64 0.13.1",
 ]
 
 [[package]]
@@ -1928,7 +1934,7 @@ version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "25bf4a5a814902cd1014dbccfa4d4560fb8432c779471e96e035602519f82eef"
 dependencies = [
- "base64",
+ "base64 0.13.1",
  "chrono",
  "hex",
  "indexmap",
diff --git a/Cargo.toml b/Cargo.toml
index 2750a15..283e129 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -43,7 +43,7 @@ scrypt = { version = "0.10", default-features = false }
 cdc = "0.1"
 integer-sqrt = "0.1"
 # serialization
-base64 = "0.13"
+base64 = "0.20"
 binrw = "0.10"
 hex = { version = "0.4", features = ["serde"] }
 serde = { version = "1", features = ["derive"] }