diff --git a/go.mod b/go.mod
index 80d640b3..e35074dd 100644
--- a/go.mod
+++ b/go.mod
@@ -6,7 +6,7 @@ require (
 	github.com/dustin/go-humanize v1.0.0
 	github.com/flynn/go-docopt v0.0.0-20140912013429-f6dd2ebbb31e
 	github.com/onsi/gomega v1.18.1 // indirect
-	github.com/secure-systems-lab/go-securesystemslib v0.3.1
+	github.com/secure-systems-lab/go-securesystemslib v0.4.0
 	github.com/stretchr/testify v1.7.1
 	github.com/syndtr/goleveldb v1.0.1-0.20210819022825-2ae1ddf74ef7
 	golang.org/x/crypto v0.0.0-20211117183948-ae814b36b871
diff --git a/go.sum b/go.sum
index 0dbe845a..18914c6b 100644
--- a/go.sum
+++ b/go.sum
@@ -52,11 +52,10 @@ github.com/onsi/gomega v1.18.1 h1:M1GfJqGRrBrrGGsbxzV5dqM2U2ApXefZCQpkukxYRLE=
 github.com/onsi/gomega v1.18.1/go.mod h1:0q+aL8jAiMXy9hbwj2mr5GziHiwhAIQpFmmtT5hitRs=
 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/secure-systems-lab/go-securesystemslib v0.3.1 h1:LJuyMziazadwmQRRu1M7GMUo5S1oH1+YxU9FjuSFU8k=
-github.com/secure-systems-lab/go-securesystemslib v0.3.1/go.mod h1:o8hhjkbNl2gOamKUA/eNW3xUrntHT9L4W89W1nfj43U=
+github.com/secure-systems-lab/go-securesystemslib v0.4.0 h1:b23VGrQhTA8cN2CbBw7/FulN9fTtqYUdS5+Oxzt+DUE=
+github.com/secure-systems-lab/go-securesystemslib v0.4.0/go.mod h1:FGBZgq2tXWICsxWQW1msNf49F0Pf2Op5Htayx335Qbs=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
-github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.7.1 h1:5TQK59W5E3v0r2duFAb7P95B6hEeOyEnHRa8MjYSMTY=
 github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/syndtr/goleveldb v1.0.1-0.20210819022825-2ae1ddf74ef7 h1:epCh84lMvA70Z7CTTCmYQn2CKbY8j86K7/FAIr141uY=