diff --git a/go.mod b/go.mod
index 500bf084..9cee3dcc 100644
--- a/go.mod
+++ b/go.mod
@@ -4,9 +4,9 @@ go 1.22.0
 
 require (
 	github.com/go-ldap/ldap/v3 v3.4.8
-	github.com/notaryproject/notation-core-go v1.2.0-rc.1.0.20241129024749-95d89543c9f9
+	github.com/notaryproject/notation-core-go v1.2.0-rc.2
 	github.com/notaryproject/notation-plugin-framework-go v1.0.0
-	github.com/notaryproject/tspclient-go v0.2.1-0.20241030015323-90a141e7525c
+	github.com/notaryproject/tspclient-go v1.0.0-rc.1
 	github.com/opencontainers/go-digest v1.0.0
 	github.com/opencontainers/image-spec v1.1.0
 	github.com/veraison/go-cose v1.3.0
diff --git a/go.sum b/go.sum
index 887c93a4..c8ee5339 100644
--- a/go.sum
+++ b/go.sum
@@ -32,12 +32,12 @@ github.com/jcmturner/gokrb5/v8 v8.4.4 h1:x1Sv4HaTpepFkXbt2IkL29DXRf8sOfZXo8eRKh6
 github.com/jcmturner/gokrb5/v8 v8.4.4/go.mod h1:1btQEpgT6k+unzCwX1KdWMEwPPkkgBtP+F6aCACiMrs=
 github.com/jcmturner/rpc/v2 v2.0.3 h1:7FXXj8Ti1IaVFpSAziCZWNzbNuZmnvw/i6CqLNdWfZY=
 github.com/jcmturner/rpc/v2 v2.0.3/go.mod h1:VUJYCIDm3PVOEHw8sgt091/20OJjskO/YJki3ELg/Hc=
-github.com/notaryproject/notation-core-go v1.2.0-rc.1.0.20241129024749-95d89543c9f9 h1:FURo9xpGLKmghWCcWypCPQTlcOGKxzayeXacGfb8WUU=
-github.com/notaryproject/notation-core-go v1.2.0-rc.1.0.20241129024749-95d89543c9f9/go.mod h1:Umjn4NKGmuHpVffMgKVcUnArNG3Qtd3duKYpPILUBg4=
+github.com/notaryproject/notation-core-go v1.2.0-rc.2 h1:0jOItalNwBNUhyuc5PPHQxO3jIZ5xRYq+IvRMQXNbuE=
+github.com/notaryproject/notation-core-go v1.2.0-rc.2/go.mod h1:7aIcavfywFvBQoYyfVFJB501kt7Etqyubrt5mhJBG2c=
 github.com/notaryproject/notation-plugin-framework-go v1.0.0 h1:6Qzr7DGXoCgXEQN+1gTZWuJAZvxh3p8Lryjn5FaLzi4=
 github.com/notaryproject/notation-plugin-framework-go v1.0.0/go.mod h1:RqWSrTOtEASCrGOEffq0n8pSg2KOgKYiWqFWczRSics=
-github.com/notaryproject/tspclient-go v0.2.1-0.20241030015323-90a141e7525c h1:bX6gGxFw9+DShmYTgbD+vr6neF1SoXIMUU2fDgdLsfA=
-github.com/notaryproject/tspclient-go v0.2.1-0.20241030015323-90a141e7525c/go.mod h1:LGyA/6Kwd2FlM0uk8Vc5il3j0CddbWSHBj/4kxQDbjs=
+github.com/notaryproject/tspclient-go v1.0.0-rc.1 h1:KcHxlqg6Adt4kzGLw012i0YMLlwGwToiR129c6IQ7Ys=
+github.com/notaryproject/tspclient-go v1.0.0-rc.1/go.mod h1:LGyA/6Kwd2FlM0uk8Vc5il3j0CddbWSHBj/4kxQDbjs=
 github.com/opencontainers/go-digest v1.0.0 h1:apOUWs51W5PlhuyGyz9FCeeBIOUDA/6nW8Oi/yOhh5U=
 github.com/opencontainers/go-digest v1.0.0/go.mod h1:0JzlMkj0TRzQZfJkVvzbP0HBR3IKzErnv2BNG4W4MAM=
 github.com/opencontainers/image-spec v1.1.0 h1:8SG7/vwALn54lVB/0yZ/MMwhFrPYtpEHQb2IpWsCzug=