diff --git a/Cargo.lock b/Cargo.lock
index cddf9e8..231e55a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -418,6 +418,12 @@ version = "0.13.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9e1b586273c5702936fe7b7d6896644d8be71e6314cfe09d3167c95f712589e8"
 
+[[package]]
+name = "base64"
+version = "0.21.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c79fed4cdb43e993fcdadc7e58a09fd0e3e649c4436fa11da71c9f1f3ee7feb9"
+
 [[package]]
 name = "base64ct"
 version = "1.5.3"
@@ -552,7 +558,7 @@ name = "brick"
 version = "1.0.1"
 dependencies = [
  "assert_matches",
- "base64 0.13.1",
+ "base64 0.21.6",
  "bincode",
  "borsh",
  "bytemuck",
@@ -4251,7 +4257,7 @@ name = "solend-program"
 version = "2.0.2"
 dependencies = [
  "assert_matches",
- "base64 0.13.1",
+ "base64 0.21.6",
  "bincode",
  "borsh",
  "bytemuck",
@@ -4295,7 +4301,7 @@ version = "2.0.2"
 dependencies = [
  "arrayref",
  "assert_matches",
- "base64 0.13.1",
+ "base64 0.21.6",
  "bytemuck",
  "log",
  "num-derive",
diff --git a/token-lending/brick/Cargo.toml b/token-lending/brick/Cargo.toml
index 24a1398..1875033 100644
--- a/token-lending/brick/Cargo.toml
+++ b/token-lending/brick/Cargo.toml
@@ -17,7 +17,7 @@ solana-program = "=1.14.10"
 [dev-dependencies]
 assert_matches = "1.5.0"
 bytemuck = "1.5.1"
-base64 = "0.13"
+base64 = "0.21"
 log = "0.4.14"
 proptest = "1.0"
 solana-program-test = "=1.14.10"
diff --git a/token-lending/program/Cargo.toml b/token-lending/program/Cargo.toml
index e570407..9306c4c 100644
--- a/token-lending/program/Cargo.toml
+++ b/token-lending/program/Cargo.toml
@@ -24,7 +24,7 @@ bytemuck = "1.5.1"
 [dev-dependencies]
 assert_matches = "1.5.0"
 bytemuck = "1.5.1"
-base64 = "0.13"
+base64 = "0.21"
 log = "0.4.14"
 proptest = "1.0"
 solana-program-test = "=1.14.10"
diff --git a/token-lending/sdk/Cargo.toml b/token-lending/sdk/Cargo.toml
index d0343d0..455169f 100644
--- a/token-lending/sdk/Cargo.toml
+++ b/token-lending/sdk/Cargo.toml
@@ -22,7 +22,7 @@ uint = "=0.9.1"
 
 [dev-dependencies]
 assert_matches = "1.5.0"
-base64 = "0.13"
+base64 = "0.21"
 log = "0.4.14"
 proptest = "1.0"
 solana-sdk = ">=1.9, < 1.15"