diff --git a/notation/go.mod b/notation/go.mod
index af21030..07bb066 100644
--- a/notation/go.mod
+++ b/notation/go.mod
@@ -5,7 +5,7 @@ go 1.22.0
 require (
 	github.com/notaryproject/notation-core-go v1.2.0
 	github.com/notaryproject/notation-go v1.3.1
-	github.com/opencontainers/image-spec v1.1.0
+	github.com/opencontainers/image-spec v1.1.1
 	github.com/ratify-project/ratify-go v0.0.0-20250210030230-fce66985bcc3
 )
 
diff --git a/notation/go.sum b/notation/go.sum
index 5cbb0f4..370b4d8 100644
--- a/notation/go.sum
+++ b/notation/go.sum
@@ -43,8 +43,8 @@ github.com/notaryproject/tspclient-go v1.0.0 h1:AwQ4x0gX8IHnyiZB1tggpn5NFqHpTEm1
 github.com/notaryproject/tspclient-go v1.0.0/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=
-github.com/opencontainers/image-spec v1.1.0/go.mod h1:W4s4sFTMaBeK1BQLXbG4AdM2szdn85PY75RI83NrTrM=
+github.com/opencontainers/image-spec v1.1.1 h1:y0fUlFfIZhPF1W537XOLg0/fcx6zcHCJwooC2xJA040=
+github.com/opencontainers/image-spec v1.1.1/go.mod h1:qpqAh3Dmcf36wStyyWU+kCeDgrGnAve2nCC8+7h8Q0M=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/ratify-project/ratify-go v0.0.0-20250210030230-fce66985bcc3 h1:vP3BdMFy211N7WWPt+7mZQpO3V6cJRgJhp0DjB9CWXw=