diff --git a/common/hugo/hugo.go b/common/hugo/hugo.go
index d8d1c7c1..13ed4773 100644
--- a/common/hugo/hugo.go
+++ b/common/hugo/hugo.go
@@ -122,7 +122,8 @@ func GetDependencyList() []string {
 	if IsExtended {
 		deps = append(
 			deps,
-			formatDep("github.com/sass/libsass", "3.6.4"),
+			// TODO(bep) consider adding a DepsNonGo() method to these upstream projects.
+			formatDep("github.com/sass/libsass", "3.6.5"),
 			formatDep("github.com/webmproject/libwebp", "v1.2.0"),
 		)
 	}
diff --git a/go.mod b/go.mod
index a52ef2ef..ca89a0ca 100644
--- a/go.mod
+++ b/go.mod
@@ -12,7 +12,7 @@ require (
 	github.com/bep/debounce v1.2.0
 	github.com/bep/gitmap v1.1.2
 	github.com/bep/godartsass v0.12.0
-	github.com/bep/golibsass v0.7.0
+	github.com/bep/golibsass v1.0.0
 	github.com/bep/gowebp v0.1.0
 	github.com/bep/tmc v0.5.1
 	github.com/cli/safeexec v1.0.0
diff --git a/go.sum b/go.sum
index f321432d..ccdc49b6 100644
--- a/go.sum
+++ b/go.sum
@@ -165,6 +165,8 @@ github.com/bep/godartsass v0.12.0 h1:VvGLA4XpXUjKvp53SI05YFLhRFJ78G+Ybnlaz6Oul7E
 github.com/bep/godartsass v0.12.0/go.mod h1:nXQlHHk4H1ghUk6n/JkYKG5RD43yJfcfp5aHRqT/pc4=
 github.com/bep/golibsass v0.7.0 h1:/ocxgtPZ5rgp7FA+mktzyent+fAg82tJq4iMsTMBAtA=
 github.com/bep/golibsass v0.7.0/go.mod h1:DL87K8Un/+pWUS75ggYv41bliGiolxzDKWJAq3eJ1MA=
+github.com/bep/golibsass v1.0.0 h1:gNguBMSDi5yZEZzVZP70YpuFQE3qogJIGUlrVILTmOw=
+github.com/bep/golibsass v1.0.0/go.mod h1:DL87K8Un/+pWUS75ggYv41bliGiolxzDKWJAq3eJ1MA=
 github.com/bep/gowebp v0.1.0 h1:4/iQpfnxHyXs3x/aTxMMdOpLEQQhFmF6G7EieWPTQyo=
 github.com/bep/gowebp v0.1.0/go.mod h1:ZhFodwdiFp8ehGJpF4LdPl6unxZm9lLFjxD3z2h2AgI=
 github.com/bep/tmc v0.5.1 h1:CsQnSC6MsomH64gw0cT5f+EwQDcvZz4AazKunFwTpuI=