diff --git a/go.mod b/go.mod
index 36b9d41d..cce0ff1d 100644
--- a/go.mod
+++ b/go.mod
@@ -29,7 +29,7 @@ require (
 	github.com/hashicorp/hcl/v2 v2.23.0
 	github.com/in-toto/in-toto-golang v0.5.0
 	github.com/mitchellh/hashstructure/v2 v2.0.2
-	github.com/moby/buildkit v0.21.0-rc2
+	github.com/moby/buildkit v0.21.0
 	github.com/moby/sys/mountinfo v0.7.2
 	github.com/moby/sys/signal v0.7.1
 	github.com/morikuni/aec v1.0.0
diff --git a/go.sum b/go.sum
index d552ed0e..4d37698d 100644
--- a/go.sum
+++ b/go.sum
@@ -279,8 +279,8 @@ github.com/mitchellh/go-wordwrap v0.0.0-20150314170334-ad45545899c7/go.mod h1:ZX
 github.com/mitchellh/hashstructure/v2 v2.0.2 h1:vGKWl0YJqUNxE8d+h8f6NJLcCJrgbhC4NcD46KavDd4=
 github.com/mitchellh/hashstructure/v2 v2.0.2/go.mod h1:MG3aRVU/N29oo/V/IhBX8GR/zz4kQkprJgF2EVszyDE=
 github.com/mitchellh/mapstructure v0.0.0-20150613213606-2caf8efc9366/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y=
-github.com/moby/buildkit v0.21.0-rc2 h1:JxocuYzqoGLPzftFiDi/Afb85RbXWqt3ObEADRdFFE0=
-github.com/moby/buildkit v0.21.0-rc2/go.mod h1:mBq0D44uCyz2PdX8T/qym5LBbkBO3GGv0wqgX9ABYYw=
+github.com/moby/buildkit v0.21.0 h1:+z4vVqgt0spLrOSxi4DLedRbIh2gbNVlZ5q4rsnNp60=
+github.com/moby/buildkit v0.21.0/go.mod h1:mBq0D44uCyz2PdX8T/qym5LBbkBO3GGv0wqgX9ABYYw=
 github.com/moby/docker-image-spec v1.3.1 h1:jMKff3w6PgbfSa69GfNg+zN/XLhfXJGnEx3Nl2EsFP0=
 github.com/moby/docker-image-spec v1.3.1/go.mod h1:eKmb5VW8vQEh/BAr2yvVNvuiJuY6UIocYsFu/DxxRpo=
 github.com/moby/locker v1.0.1 h1:fOXqR41zeveg4fFODix+1Ch4mj/gT0NE1XJbp/epuBg=
diff --git a/vendor/modules.txt b/vendor/modules.txt
index d7d53975..84fe5bff 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -479,7 +479,7 @@ github.com/mitchellh/go-wordwrap
 # github.com/mitchellh/hashstructure/v2 v2.0.2
 ## explicit; go 1.14
 github.com/mitchellh/hashstructure/v2
-# github.com/moby/buildkit v0.21.0-rc2
+# github.com/moby/buildkit v0.21.0
 ## explicit; go 1.23.0
 github.com/moby/buildkit/api/services/control
 github.com/moby/buildkit/api/types