diff --git a/actix-extractor/src/lib.rs b/actix-extractor/src/lib.rs
index e2ef602..0410ba9 100644
--- a/actix-extractor/src/lib.rs
+++ b/actix-extractor/src/lib.rs
@@ -5,7 +5,7 @@
 pub use actix_web_lab::extract::RequestSignature;
 pub use http_signature_normalization::{
     verify::{Algorithm, DeprecatedAlgorithm},
-    Config,
+    Config, PrepareVerifyError,
 };
 
 pub type Signed<Extractor, Config, Digest, VerifyKey> =
@@ -19,7 +19,7 @@ pub enum Error {
     Digest,
     Signature,
     InvalidHeaderValue,
-    PrepareVerify(http_signature_normalization::PrepareVerifyError),
+    PrepareVerify(PrepareVerifyError),
 }
 
 impl std::fmt::Display for Error {
@@ -54,8 +54,8 @@ impl actix_web::ResponseError for Error {
     }
 }
 
-impl From<http_signature_normalization::PrepareVerifyError> for Error {
-    fn from(e: http_signature_normalization::PrepareVerifyError) -> Self {
+impl From<PrepareVerifyError> for Error {
+    fn from(e: PrepareVerifyError) -> Self {
         Error::PrepareVerify(e)
     }
 }