diff --git a/cmd/run.go b/cmd/run.go
index 2efbf4b1..81742dfe 100644
--- a/cmd/run.go
+++ b/cmd/run.go
@@ -27,7 +27,6 @@ import (
 	"github.com/in-toto/go-witness/attestation/material"
 	"github.com/in-toto/go-witness/attestation/product"
 	"github.com/in-toto/go-witness/cryptoutil"
-	"github.com/in-toto/go-witness/dsse"
 	"github.com/in-toto/go-witness/log"
 	"github.com/in-toto/go-witness/registry"
 	"github.com/in-toto/go-witness/timestamp"
@@ -75,7 +74,7 @@ func runRun(ctx context.Context, ro options.RunOptions, args []string, signers .
 		return fmt.Errorf("failed to open out file: %w", err)
 	}
 
-	timestampers := []dsse.Timestamper{}
+	timestampers := []timestamp.Timestamper{}
 	for _, url := range ro.TimestampServers {
 		timestampers = append(timestampers, timestamp.NewTimestamper(timestamp.TimestampWithUrl(url)))
 	}
diff --git a/cmd/sign.go b/cmd/sign.go
index 4fc3e79e..d2e6b012 100644
--- a/cmd/sign.go
+++ b/cmd/sign.go
@@ -64,7 +64,7 @@ func runSign(ctx context.Context, so options.SignOptions, signers ...cryptoutil.
 		return fmt.Errorf("no signers found")
 	}
 
-	timestampers := []dsse.Timestamper{}
+	timestampers := []timestamp.Timestamper{}
 	for _, url := range so.TimestampServers {
 		timestampers = append(timestampers, timestamp.NewTimestamper(timestamp.TimestampWithUrl(url)))
 	}
diff --git a/go.sum b/go.sum
index 9bfc6685..d09a1fd3 100644
--- a/go.sum
+++ b/go.sum
@@ -220,8 +220,6 @@ github.com/ianlancetaylor/demangle v0.0.0-20181102032728-5e5cf60278f6/go.mod h1:
 github.com/ianlancetaylor/demangle v0.0.0-20200824232613-28f6c0f3b639/go.mod h1:aSSvb/t6k1mPoxDqO4vJh6VOCGPwU4O0C2/Eqndh1Sc=
 github.com/in-toto/archivista v0.2.0 h1:FViuHMVVETborvOqlmSYdROY8RmX3CO0V0MOhU/Rl20=
 github.com/in-toto/archivista v0.2.0/go.mod h1:qt9uN4TkHWUgR5A2wxRqQIBizSl32P2nI2AjESskkr0=
-github.com/in-toto/go-witness v0.2.1 h1:eAxMBWUPbz3oPU3lsfEYi/Kdj6weej2umm59bOXPJSU=
-github.com/in-toto/go-witness v0.2.1/go.mod h1:xURJVj4QRD3xnzOJps7gT0pMCFPpAHcPqDC3EyuLuUE=
 github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
 github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
 github.com/jbenet/go-context v0.0.0-20150711004518-d14ea06fba99 h1:BQSFePA1RWJOlocH6Fxy8MmwDt+yVQYULKfN0RoTN8A=