diff --git a/Cargo.lock b/Cargo.lock
index 9960ed6..41104eb 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -535,9 +535,9 @@ dependencies = [
 
 [[package]]
 name = "darling"
-version = "0.14.4"
+version = "0.21.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7b750cb3417fd1b327431a470f388520309479ab0bf5e323505daf0290cd3850"
+checksum = "a79c4acb1fd5fa3d9304be4c76e031c54d2e92d172a393e24b19a14fe8532fe9"
 dependencies = [
  "darling_core",
  "darling_macro",
@@ -545,27 +545,27 @@ dependencies = [
 
 [[package]]
 name = "darling_core"
-version = "0.14.4"
+version = "0.21.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "109c1ca6e6b7f82cc233a97004ea8ed7ca123a9af07a8230878fcfda9b158bf0"
+checksum = "74875de90daf30eb59609910b84d4d368103aaec4c924824c6799b28f77d6a1d"
 dependencies = [
  "fnv",
  "ident_case",
  "proc-macro2",
  "quote",
  "strsim",
- "syn 1.0.109",
+ "syn 2.0.101",
 ]
 
 [[package]]
 name = "darling_macro"
-version = "0.14.4"
+version = "0.21.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a4aab4dbc9f7611d8b55048a3a16d2d010c2c8334e46304b40ac1cc14bf3b48e"
+checksum = "e79f8e61677d5df9167cd85265f8e5f64b215cdea3fb55eebc3e622e44c7a146"
 dependencies = [
  "darling_core",
  "quote",
- "syn 1.0.109",
+ "syn 2.0.101",
 ]
 
 [[package]]
@@ -1971,9 +1971,9 @@ dependencies = [
 
 [[package]]
 name = "strsim"
-version = "0.10.0"
+version = "0.11.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
+checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f"
 
 [[package]]
 name = "subtle"
diff --git a/crates/anchor-generate-cpi-interface/Cargo.toml b/crates/anchor-generate-cpi-interface/Cargo.toml
index 67a3b83..4e33c99 100644
--- a/crates/anchor-generate-cpi-interface/Cargo.toml
+++ b/crates/anchor-generate-cpi-interface/Cargo.toml
@@ -19,7 +19,7 @@ compat-program-result = ["anchor-idl/compat-program-result"]
 
 [dependencies]
 anchor-idl = { version = "0.4.0", path = "../anchor-idl" }
-darling = "0.14"
+darling = "0.21"
 syn = { version = "1", features = ["full"] }
 
 [dev-dependencies]
diff --git a/crates/anchor-idl/Cargo.toml b/crates/anchor-idl/Cargo.toml
index a9fd850..e8ce93d 100644
--- a/crates/anchor-idl/Cargo.toml
+++ b/crates/anchor-idl/Cargo.toml
@@ -13,7 +13,7 @@ compat-program-result = []
 
 [dependencies]
 anchor-lang-idl-spec = "0.1.0"
-darling = "0.14"
+darling = "0.21"
 heck = "0.4.1"
 proc-macro2 = "1"
 quote = "1"