diff --git a/Cargo.lock b/Cargo.lock
index bec1a9bde3..39e7f6c09b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -332,12 +332,6 @@ dependencies = [
  "rustc-demangle",
 ]
 
-[[package]]
-name = "base16ct"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "349a06037c7bf932dd7e7d1f653678b2038b9ad46a74102f1fc7bd7872678cce"
-
 [[package]]
 name = "base16ct"
 version = "0.2.0"
@@ -1150,12 +1144,11 @@ dependencies = [
  "rand",
  "ring",
  "rsa",
- "sec1 0.3.0",
  "serde",
  "serde_bytes",
  "sha1",
  "sha2",
- "signature 1.6.4",
+ "signature",
  "spki",
  "tokio",
  "uuid",
@@ -1488,7 +1481,7 @@ dependencies = [
  "serde",
  "sha-1",
  "sha2",
- "signature 1.6.4",
+ "signature",
  "tokio",
  "typenum",
  "url",
@@ -1787,15 +1780,6 @@ dependencies = [
  "uuid",
 ]
 
-[[package]]
-name = "der"
-version = "0.6.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f1a467a65c5e759bce6e65eaf91cc29f466cdc57cb65777bd646872a8a1fd4de"
-dependencies = [
- "const-oid",
-]
-
 [[package]]
 name = "der"
 version = "0.7.8"
@@ -2032,7 +2016,7 @@ dependencies = [
  "pkcs8",
  "rfc6979",
  "sha2",
- "signature 2.1.0",
+ "signature",
  "zeroize",
 ]
 
@@ -2083,11 +2067,11 @@ version = "0.16.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a4b1e0c257a9e9f25f90ff76d7a68360ed497ee519c8e428d1825ef0000799d4"
 dependencies = [
- "der 0.7.8",
+ "der",
  "digest",
  "elliptic-curve",
  "rfc6979",
- "signature 2.1.0",
+ "signature",
  "spki",
 ]
 
@@ -2103,7 +2087,7 @@ version = "0.13.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "968405c8fdc9b3bf4df0a6638858cc0b52462836ab6b1c87377785dd09cf1c0b"
 dependencies = [
- "base16ct 0.2.0",
+ "base16ct",
  "crypto-bigint",
  "digest",
  "ff",
@@ -2113,7 +2097,7 @@ dependencies = [
  "pem-rfc7468",
  "pkcs8",
  "rand_core",
- "sec1 0.7.3",
+ "sec1",
  "subtle",
  "zeroize",
 ]
@@ -3853,7 +3837,7 @@ version = "0.7.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c8ffb9f10fa047879315e6625af03c164b16962a5368d724ed16323b68ace47f"
 dependencies = [
- "der 0.7.8",
+ "der",
  "pkcs8",
  "spki",
 ]
@@ -3864,7 +3848,7 @@ version = "0.10.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f950b2377845cebe5cf8b5165cb3cc1a5e0fa5cfa3e1f7f55707d8fd82e0a7b7"
 dependencies = [
- "der 0.7.8",
+ "der",
  "spki",
 ]
 
@@ -4350,7 +4334,7 @@ dependencies = [
  "pkcs1",
  "pkcs8",
  "rand_core",
- "signature 2.1.0",
+ "signature",
  "spki",
  "subtle",
  "zeroize",
@@ -4618,25 +4602,14 @@ dependencies = [
  "untrusted",
 ]
 
-[[package]]
-name = "sec1"
-version = "0.3.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3be24c1842290c45df0a7bf069e0c268a747ad05a192f2fd7dcfdbc1cba40928"
-dependencies = [
- "base16ct 0.1.1",
- "der 0.6.1",
- "generic-array",
-]
-
 [[package]]
 name = "sec1"
 version = "0.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d3e97a565f76233a6003f9f5c54be1d9c5bdfa3eccfb189469f11ec4901c47dc"
 dependencies = [
- "base16ct 0.2.0",
- "der 0.7.8",
+ "base16ct",
+ "der",
  "generic-array",
  "pkcs8",
  "subtle",
@@ -4850,12 +4823,6 @@ dependencies = [
  "libc",
 ]
 
-[[package]]
-name = "signature"
-version = "1.6.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "74233d3b3b2f6d4b006dc19dee745e73e2a6bfb6f93607cd3b02bd5b00797d7c"
-
 [[package]]
 name = "signature"
 version = "2.1.0"
@@ -4984,7 +4951,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9d1e996ef02c474957d681f1b05213dfb0abab947b446a62d37770b23500184a"
 dependencies = [
  "base64ct",
- "der 0.7.8",
+ "der",
 ]
 
 [[package]]
diff --git a/Cargo.toml b/Cargo.toml
index 3af8c60fc9..8849165e6c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -138,7 +138,7 @@ serde_bytes = "0.11"
 serde_json = "1.0.85"
 serde_repr = "=0.1.16"
 sha2 = { version = "0.10.8", features = ["oid"] }
-signature = "=1.6.4"
+signature = "2.1"
 slab = "0.4"
 smallvec = "1.8"
 socket2 = { version = "0.5.3", features = ["all"] }
diff --git a/ext/crypto/Cargo.toml b/ext/crypto/Cargo.toml
index 5921beee67..f24c896598 100644
--- a/ext/crypto/Cargo.toml
+++ b/ext/crypto/Cargo.toml
@@ -33,7 +33,6 @@ p384 = "0.13.0"
 rand.workspace = true
 ring = { workspace = true, features = ["std"] }
 rsa.workspace = true
-sec1 = "0.3.0"
 serde.workspace = true
 serde_bytes.workspace = true
 sha1 = { version = "0.10.6", features = ["oid"] }