diff --git a/dsa/Cargo.toml b/dsa/Cargo.toml
index 7300fc7..a791a55 100644
--- a/dsa/Cargo.toml
+++ b/dsa/Cargo.toml
@@ -26,12 +26,12 @@ signature = { version = "3.0.0-rc.2", default-features = false, features = ["all
 zeroize = { version = "1", default-features = false, features = ["alloc"] }
 
 # optional dependencies
-pkcs8 = { version = "0.11.0-rc.5", optional = true, default-features = false, features = ["alloc"] }
+pkcs8 = { version = "0.11.0-rc.6", optional = true, default-features = false, features = ["alloc"] }
 
 [dev-dependencies]
 hex = "0.4.3"
 hex-literal = "1"
-pkcs8 = { version = "0.11.0-rc.5", default-features = false, features = ["pem"] }
+pkcs8 = { version = "0.11.0-rc.6", default-features = false, features = ["pem"] }
 proptest = "1"
 rand = "0.9"
 rand_chacha = "0.9"
diff --git a/ed25519/Cargo.toml b/ed25519/Cargo.toml
index 5aa6bfa..e8e964d 100644
--- a/ed25519/Cargo.toml
+++ b/ed25519/Cargo.toml
@@ -21,7 +21,7 @@ rust-version = "1.85"
 signature = { version = "3.0.0-rc.2", default-features = false }
 
 # optional dependencies
-pkcs8 = { version = "0.11.0-rc.2", optional = true }
+pkcs8 = { version = "0.11.0-rc.6", optional = true }
 serde = { version = "1", optional = true, default-features = false }
 serde_bytes = { version = "0.11", optional = true, default-features = false }
 zeroize = { version = "1", optional = true, default-features = false }
diff --git a/ed448/Cargo.toml b/ed448/Cargo.toml
index 342c24c..c3cddf5 100644
--- a/ed448/Cargo.toml
+++ b/ed448/Cargo.toml
@@ -21,7 +21,7 @@ rust-version = "1.85"
 signature = { version = "3.0.0-rc.2", default-features = false }
 
 # optional dependencies
-pkcs8 = { version = "0.11.0-rc.1", optional = true }
+pkcs8 = { version = "0.11.0-rc.6", optional = true }
 serde = { version = "1", optional = true, default-features = false }
 serde_bytes = { version = "0.11", optional = true, default-features = false }
 zeroize = { version = "1", optional = true, default-features = false }
diff --git a/ml-dsa/Cargo.toml b/ml-dsa/Cargo.toml
index 09c7aac..5b48353 100644
--- a/ml-dsa/Cargo.toml
+++ b/ml-dsa/Cargo.toml
@@ -40,13 +40,13 @@ signature = { version = "3.0.0-rc.2", default-features = false }
 zeroize = { version = "1.8.1", optional = true, default-features = false }
 
 const-oid = { version = "0.10", features = ["db"], optional = true }
-pkcs8 = { version = "0.11.0-rc.2", default-features = false, optional = true }
+pkcs8 = { version = "0.11.0-rc.6", default-features = false, optional = true }
 
 [dev-dependencies]
 criterion = "0.5.1"
 hex = { version = "0.4.3", features = ["serde"] }
 hex-literal = "1"
-pkcs8 = { version = "0.11.0-rc.2", features = ["pem"] }
+pkcs8 = { version = "0.11.0-rc.6", features = ["pem"] }
 proptest = "1"
 rand = "0.9"
 serde = { version = "1.0.215", features = ["derive"] }
diff --git a/slh-dsa/Cargo.toml b/slh-dsa/Cargo.toml
index b269afe..738c99a 100644
--- a/slh-dsa/Cargo.toml
+++ b/slh-dsa/Cargo.toml
@@ -25,7 +25,7 @@ signature = { version = "3.0.0-rc.2", features = ["rand_core"] }
 hmac = "0.13.0-prc.0"
 sha2 = { version = "0.11.0-rc.0", default-features = false }
 digest = "0.11.0-rc.0"
-pkcs8 = { version = "0.11.0-rc.1", default-features = false }
+pkcs8 = { version = "0.11.0-rc.6", default-features = false }
 const-oid = { version = "0.10", features = ["db"] }
 zeroize = { version = "1.8.1", optional = true, default-features = false }
 
@@ -45,7 +45,7 @@ paste = "1.0.15"
 rand = "0.9"
 serde_json = "1.0.124"
 serde = { version = "1.0.207", features = ["derive"] }
-pkcs8 = { version = "0.11.0-rc.1", features = ["pem"] }
+pkcs8 = { version = "0.11.0-rc.6", features = ["pem"] }
 
 [lib]
 bench = false