diff --git a/cmd/cosign/cli/attach.go b/cmd/cosign/cli/attach.go
index fbb775a53be..3ab3787be11 100644
--- a/cmd/cosign/cli/attach.go
+++ b/cmd/cosign/cli/attach.go
@@ -94,7 +94,7 @@ func attachAttestation() *cobra.Command {
   cosign attach attestation --attestation <attestation file path> --attestation <attestation file path> <image uri>
 
   # attach attestation from bundle files in form of JSONLines to a container image
-  # https://github.com/in-toto/attestation/blob/main/spec/bundle.md
+  # https://github.com/in-toto/attestation/blob/main/spec/v1.0-draft/bundle.md
   cosign attach attestation --attestation <attestation bundle file path> <image uri>
 `,
 
diff --git a/doc/cosign_attach_attestation.md b/doc/cosign_attach_attestation.md
index b54f34b290b..ced29990a94 100644
--- a/doc/cosign_attach_attestation.md
+++ b/doc/cosign_attach_attestation.md
@@ -15,7 +15,7 @@ cosign attach attestation [flags]
   cosign attach attestation --attestation <attestation file path> --attestation <attestation file path> <image uri>
 
   # attach attestation from bundle files in form of JSONLines to a container image
-  # https://github.com/in-toto/attestation/blob/main/spec/bundle.md
+  # https://github.com/in-toto/attestation/blob/main/spec/v1.0-draft/bundle.md
   cosign attach attestation --attestation <attestation bundle file path> <image uri>
 
 ```