diff --git a/CHANGELOG.md b/CHANGELOG.md
index 655dae3..14a65c8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,7 @@ Changes in the upcoming versions.
 ## Breaking Changes
 
 ## Improvements
+- Update dependency versions.
 
 # release-2024-07-01
 
diff --git a/Cargo.lock b/Cargo.lock
index eca871f..11a234b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -615,8 +615,8 @@ dependencies = [
  "base64 0.21.7",
  "candid",
  "ic-canister-sig-creation",
- "ic-cdk 0.13.2",
- "ic-cdk-macros 0.13.2",
+ "ic-cdk 0.15.1",
+ "ic-cdk-macros 0.15.0",
  "ic-certification",
  "ic-crypto-getrandom-for-wasm",
  "ic-verifiable-credentials",
@@ -635,8 +635,8 @@ dependencies = [
  "anyhow",
  "base64 0.21.7",
  "candid",
- "ic-cdk 0.13.2",
- "ic-cdk-macros 0.13.2",
+ "ic-cdk 0.15.1",
+ "ic-cdk-macros 0.15.0",
  "ic-http-certification",
  "include_dir",
  "lazy_static",
@@ -1150,6 +1150,19 @@ dependencies = [
  "serde_bytes",
 ]
 
+[[package]]
+name = "ic-cdk"
+version = "0.15.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "038ff230bf0fc8630943e3c52e989d248a7c89834ccb65da408fabc5817a475b"
+dependencies = [
+ "candid",
+ "ic-cdk-macros 0.15.0",
+ "ic0 0.23.0",
+ "serde",
+ "serde_bytes",
+]
+
 [[package]]
 name = "ic-cdk-macros"
 version = "0.13.2"
@@ -1178,6 +1191,20 @@ dependencies = [
  "syn 2.0.66",
 ]
 
+[[package]]
+name = "ic-cdk-macros"
+version = "0.15.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3af44fb4ec3a4b18831c9d3303ca8fa2ace846c4022d50cb8df4122635d3782e"
+dependencies = [
+ "candid",
+ "proc-macro2",
+ "quote",
+ "serde",
+ "serde_tokenstream 0.2.2",
+ "syn 2.0.66",
+]
+
 [[package]]
 name = "ic-certification"
 version = "2.5.0"
diff --git a/Cargo.toml b/Cargo.toml
index bbeb8ed..2a1b9ac 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -23,8 +23,8 @@ serde_cbor = "0.11"
 serde_bytes = "0.11"
 anyhow = "1.0"
 candid = "0.10"
-ic-cdk = "0.13"
-ic-cdk-macros = "0.13"
+ic-cdk = "0.15"
+ic-cdk-macros = "0.15"
 ic-certification = "2.2"
 ic-http-certification = "2.5"
 ic-verifiable-credentials = { path = "rust-packages/ic-verifiable-credentials" }