diff --git a/Cargo.lock b/Cargo.lock
index 8cfe08d650..2b4cefccee 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -749,9 +749,9 @@ checksum = "9e1b586273c5702936fe7b7d6896644d8be71e6314cfe09d3167c95f712589e8"
 
 [[package]]
 name = "base64"
-version = "0.21.5"
+version = "0.21.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "35636a1494ede3b646cc98f74f8e62c773a38a659ebc777a2cf26b9b74171df9"
+checksum = "c79fed4cdb43e993fcdadc7e58a09fd0e3e649c4436fa11da71c9f1f3ee7feb9"
 
 [[package]]
 name = "base64ct"
@@ -4838,7 +4838,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "046cd98826c46c2ac8ddecae268eb5c2e58628688a5fc7a2643704a73faba95b"
 dependencies = [
  "async-compression",
- "base64 0.21.5",
+ "base64 0.21.6",
  "bytes",
  "encoding_rs",
  "futures-core",
@@ -5560,7 +5560,7 @@ version = "1.18.0"
 dependencies = [
  "Inflector",
  "assert_matches",
- "base64 0.21.5",
+ "base64 0.21.6",
  "bincode",
  "bs58 0.4.0",
  "bv",
@@ -6111,7 +6111,7 @@ name = "solana-cli-output"
 version = "1.18.0"
 dependencies = [
  "Inflector",
- "base64 0.21.5",
+ "base64 0.21.6",
  "chrono",
  "clap 2.33.3",
  "console",
@@ -6245,7 +6245,7 @@ version = "1.18.0"
 dependencies = [
  "anchor-lang",
  "assert_matches",
- "base64 0.21.5",
+ "base64 0.21.6",
  "bincode",
  "bs58 0.4.0",
  "bytes",
@@ -6496,7 +6496,7 @@ dependencies = [
 name = "solana-genesis"
 version = "1.18.0"
 dependencies = [
- "base64 0.21.5",
+ "base64 0.21.6",
  "bincode",
  "clap 2.33.3",
  "itertools",
@@ -7032,7 +7032,7 @@ dependencies = [
  "ark-serialize",
  "array-bytes",
  "assert_matches",
- "base64 0.21.5",
+ "base64 0.21.6",
  "bincode",
  "bitflags 2.4.1",
  "blake3",
@@ -7084,7 +7084,7 @@ name = "solana-program-runtime"
 version = "1.18.0"
 dependencies = [
  "assert_matches",
- "base64 0.21.5",
+ "base64 0.21.6",
  "bincode",
  "eager",
  "enum-iterator",
@@ -7114,7 +7114,7 @@ version = "1.18.0"
 dependencies = [
  "assert_matches",
  "async-trait",
- "base64 0.21.5",
+ "base64 0.21.6",
  "bincode",
  "chrono-humanize",
  "crossbeam-channel",
@@ -7220,7 +7220,7 @@ dependencies = [
 name = "solana-rpc"
 version = "1.18.0"
 dependencies = [
- "base64 0.21.5",
+ "base64 0.21.6",
  "bincode",
  "bs58 0.4.0",
  "crossbeam-channel",
@@ -7283,7 +7283,7 @@ version = "1.18.0"
 dependencies = [
  "assert_matches",
  "async-trait",
- "base64 0.21.5",
+ "base64 0.21.6",
  "bincode",
  "bs58 0.4.0",
  "crossbeam-channel",
@@ -7310,7 +7310,7 @@ dependencies = [
 name = "solana-rpc-client-api"
 version = "1.18.0"
 dependencies = [
- "base64 0.21.5",
+ "base64 0.21.6",
  "bs58 0.4.0",
  "jsonrpc-core",
  "reqwest",
@@ -7380,7 +7380,7 @@ dependencies = [
  "aquamarine",
  "arrayref",
  "assert_matches",
- "base64 0.21.5",
+ "base64 0.21.6",
  "bincode",
  "blake3",
  "bv",
@@ -7497,7 +7497,7 @@ dependencies = [
  "anchor-lang",
  "anyhow",
  "assert_matches",
- "base64 0.21.5",
+ "base64 0.21.6",
  "bincode",
  "bitflags 2.4.1",
  "borsh 1.2.1",
@@ -7726,7 +7726,7 @@ dependencies = [
 name = "solana-test-validator"
 version = "1.18.0"
 dependencies = [
- "base64 0.21.5",
+ "base64 0.21.6",
  "bincode",
  "crossbeam-channel",
  "log",
@@ -7890,7 +7890,7 @@ name = "solana-transaction-status"
 version = "1.18.0"
 dependencies = [
  "Inflector",
- "base64 0.21.5",
+ "base64 0.21.6",
  "bincode",
  "borsh 0.10.3",
  "bs58 0.4.0",
@@ -8179,7 +8179,7 @@ name = "solana-zk-token-sdk"
 version = "1.18.0"
 dependencies = [
  "aes-gcm-siv",
- "base64 0.21.5",
+ "base64 0.21.6",
  "bincode",
  "bytemuck",
  "byteorder",
@@ -9068,7 +9068,7 @@ dependencies = [
  "async-stream",
  "async-trait",
  "axum",
- "base64 0.21.5",
+ "base64 0.21.6",
  "bytes",
  "futures-core",
  "futures-util",
diff --git a/Cargo.toml b/Cargo.toml
index cbe9417387..7d95988d53 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -159,7 +159,7 @@ async-mutex = "1.4.0"
 async-trait = "0.1.74"
 atty = "0.2.11"
 backoff = "0.4.0"
-base64 = "0.21.5"
+base64 = "0.21.6"
 bincode = "1.3.3"
 bitflags = { version = "2.3.3", features = ["serde"] }
 blake3 = "1.5.0"