diff --git a/go.mod b/go.mod
index 85a78c8a..64cfd8c8 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module dagger.io/go
 go 1.16
 
 require (
-	cuelang.org/go v0.4.0-beta.2
+	cuelang.org/go v0.4.0-rc.1
 	github.com/HdrHistogram/hdrhistogram-go v1.1.0 // indirect
 	github.com/KromDaniel/jonson v0.0.0-20180630143114-d2f9c3c389db
 	github.com/containerd/console v1.0.2
diff --git a/go.sum b/go.sum
index 2e7af95d..200ec5ea 100644
--- a/go.sum
+++ b/go.sum
@@ -44,8 +44,8 @@ contrib.go.opencensus.io/exporter/ocagent v0.5.0/go.mod h1:ImxhfLRpxoYiSq891pBrL
 contrib.go.opencensus.io/exporter/stackdriver v0.12.1/go.mod h1:iwB6wGarfphGGe/e5CWqyUk/cLzKnWsOKPVW3no6OTw=
 contrib.go.opencensus.io/integrations/ocsql v0.1.4/go.mod h1:8DsSdjz3F+APR+0z0WkU1aRorQCFfRxvqjUUPMbF3fE=
 contrib.go.opencensus.io/resource v0.1.1/go.mod h1:F361eGI91LCmW1I/Saf+rX0+OFcigGlFvXwEGEnkRLA=
-cuelang.org/go v0.4.0-beta.2 h1:vlW8NeTNNxTpIKxXpKpNL8H2VCGFYu+LKYXnS61EHlY=
-cuelang.org/go v0.4.0-beta.2/go.mod h1:tz/edkPi+T37AZcb5GlPY+WJkL6KiDlDVupKwL3vvjs=
+cuelang.org/go v0.4.0-rc.1 h1:X8fsqVhLCvXFhsWMGbI8rjTal45YOgt+ko+m7rOCySM=
+cuelang.org/go v0.4.0-rc.1/go.mod h1:tz/edkPi+T37AZcb5GlPY+WJkL6KiDlDVupKwL3vvjs=
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20201218220906-28db891af037/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
 filippo.io/age v1.0.0-beta7 h1:RZiSK+N3KL2UwT82xiCavjYw8jJHzWMEUYePAukTpk0=