diff --git a/go.mod b/go.mod
index 5734b01..3055800 100644
--- a/go.mod
+++ b/go.mod
@@ -2,4 +2,4 @@ module git.zero-knowledge.org/gibheer/pkictl
 
 go 1.19
 
-require git.zero-knowledge.org/gibheer/pki v0.0.0-20220815203810-d34a8ab26ec7
+require git.zero-knowledge.org/gibheer/pki v0.0.0-20230110133346-1165bbf13dd2
diff --git a/go.sum b/go.sum
index e73db6a..d987320 100644
--- a/go.sum
+++ b/go.sum
@@ -1,2 +1,2 @@
-git.zero-knowledge.org/gibheer/pki v0.0.0-20220815203810-d34a8ab26ec7 h1:SFuERGJkxqBaWO+eNl4OuTsMNOoQjsC9OWKnTbOUkD4=
-git.zero-knowledge.org/gibheer/pki v0.0.0-20220815203810-d34a8ab26ec7/go.mod h1:N0SOjUNlgYkDYBadg/Q5NjyA0Ee2w0rLf8bfsX3kzyE=
+git.zero-knowledge.org/gibheer/pki v0.0.0-20230110133346-1165bbf13dd2 h1:P7hLO1pClVd051wVVelSI8Cgbp70/Tj1z33keGj7FPk=
+git.zero-knowledge.org/gibheer/pki v0.0.0-20230110133346-1165bbf13dd2/go.mod h1:N0SOjUNlgYkDYBadg/Q5NjyA0Ee2w0rLf8bfsX3kzyE=
diff --git a/vendor/git.zero-knowledge.org/gibheer/pki/ed25519.go b/vendor/git.zero-knowledge.org/gibheer/pki/ed25519.go
index 0104beb..c616e70 100644
--- a/vendor/git.zero-knowledge.org/gibheer/pki/ed25519.go
+++ b/vendor/git.zero-knowledge.org/gibheer/pki/ed25519.go
@@ -45,9 +45,9 @@ func LoadPrivateKeyEd25519(raw []byte) (*Ed25519PrivateKey, error) {
 	return &Ed25519PrivateKey{pr_loaded}, nil
 }
 
-// TODO implement the raw API for the private key
+// PrivateKey returns the private key.
 func (pr *Ed25519PrivateKey) PrivateKey() crypto.PrivateKey {
-	return nil
+	return pr.private_key
 }
 
 // Return the public key for this private key.
diff --git a/vendor/modules.txt b/vendor/modules.txt
index 42f4cea..c947b58 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -1,3 +1,3 @@
-# git.zero-knowledge.org/gibheer/pki v0.0.0-20220815203810-d34a8ab26ec7
+# git.zero-knowledge.org/gibheer/pki v0.0.0-20230110133346-1165bbf13dd2
 ## explicit; go 1.19
 git.zero-knowledge.org/gibheer/pki