diff --git a/Cargo.lock b/Cargo.lock
index 336e1732..406970ff 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -952,7 +952,7 @@ dependencies = [
  "digest",
  "elliptic-curve",
  "rfc6979",
- "signature",
+ "signature 2.2.0",
  "spki",
 ]
 
@@ -963,7 +963,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "115531babc129696a58c64a4fef0a8bf9e9698629fb97e9e40767d235cfbcd53"
 dependencies = [
  "pkcs8",
- "signature",
+ "signature 2.2.0",
 ]
 
 [[package]]
@@ -1098,7 +1098,7 @@ dependencies = [
  "serde_json",
  "sha1",
  "sha2",
- "signature",
+ "signature 3.0.0",
  "thiserror 1.0.69",
  "tokio",
  "tokio-test",
@@ -2986,6 +2986,12 @@ dependencies = [
  "rand_core 0.6.4",
 ]
 
+[[package]]
+name = "signature"
+version = "3.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "28d567dcbaf0049cb8ac2608a76cd95ff9e4412e1899d389ee400918ca7537f5"
+
 [[package]]
 name = "simd-adler32"
 version = "0.3.9"
diff --git a/backend/Cargo.toml b/backend/Cargo.toml
index 3f74f7d2..3957c9d2 100644
--- a/backend/Cargo.toml
+++ b/backend/Cargo.toml
@@ -69,7 +69,7 @@ p256 = { version = "0.13", features = ["ecdsa"] }
 ecdsa = { version = "0.16", features = ["der"] }
 ed25519-dalek = { version = "2", features = ["rand_core"] }
 ring = "0.17"
-signature = "2"
+signature = "3"
 
 [dev-dependencies]
 tokio-test = "0.4"