diff --git a/go.mod b/go.mod
index 8737a965..5e8be90e 100644
--- a/go.mod
+++ b/go.mod
@@ -5,7 +5,7 @@ go 1.20
 require (
 	github.com/google/go-cmp v0.5.9
 	github.com/google/go-tpm v0.9.0
-	github.com/google/go-tpm-tools v0.3.13-0.20230620182252-4639ecce2aba
+	github.com/google/go-tpm-tools v0.4.0
 	github.com/google/go-tspi v0.3.0
 	golang.org/x/sys v0.12.0
 )
diff --git a/go.sum b/go.sum
index e073c538..b65b893d 100644
--- a/go.sum
+++ b/go.sum
@@ -306,8 +306,8 @@ github.com/google/go-replayers/httpreplay v0.1.0/go.mod h1:YKZViNhiGgqdBlUbI2MwG
 github.com/google/go-sev-guest v0.6.1 h1:NajHkAaLqN9/aW7bCFSUplUMtDgk2+HcN7jC2btFtk0=
 github.com/google/go-tpm v0.9.0 h1:sQF6YqWMi+SCXpsmS3fd21oPy/vSddwZry4JnmltHVk=
 github.com/google/go-tpm v0.9.0/go.mod h1:FkNVkc6C+IsvDI9Jw1OveJmxGZUUaKxtrpOS47QWKfU=
-github.com/google/go-tpm-tools v0.3.13-0.20230620182252-4639ecce2aba h1:qJEJcuLzH5KDR0gKc0zcktin6KSAwL7+jWKBYceddTc=
-github.com/google/go-tpm-tools v0.3.13-0.20230620182252-4639ecce2aba/go.mod h1:EFYHy8/1y2KfgTAsx7Luu7NGhoxtuVHnNo8jE7FikKc=
+github.com/google/go-tpm-tools v0.4.0 h1:bYRZAUvQEmn11WTKCkTLRCCv4aTlOBgBBeqCK0ABT2A=
+github.com/google/go-tpm-tools v0.4.0/go.mod h1:G7PFUk8KKQzdYYGv/cpV9LB9sPT7czAAomnceugzNKQ=
 github.com/google/go-tspi v0.3.0 h1:ADtq8RKfP+jrTyIWIZDIYcKOMecRqNJFOew2IT0Inus=
 github.com/google/go-tspi v0.3.0/go.mod h1:xfMGI3G0PhxCdNVcYr1C4C+EizojDg/TXuX5by8CiHI=
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=