diff --git a/go.mod b/go.mod
index 1330ef55..d727601b 100644
--- a/go.mod
+++ b/go.mod
@@ -25,7 +25,7 @@ require (
 	code.cloudfoundry.org/go-diodes v0.0.0-20260209061029-a81ffbc46978 // indirect
 	code.cloudfoundry.org/go-loggregator/v9 v9.2.1 // indirect
 	code.cloudfoundry.org/tlsconfig v0.45.0 // indirect
-	filippo.io/edwards25519 v1.1.0 // indirect
+	filippo.io/edwards25519 v1.1.1 // indirect
 	github.com/Masterminds/semver/v3 v3.4.0 // indirect
 	github.com/bmizerany/pat v0.0.0-20210406213842-e4b6760bdd6f // indirect
 	github.com/cloudfoundry/sonde-go v0.0.0-20220627221915-ff36de9c3435 // indirect
diff --git a/go.sum b/go.sum
index e3c55672..f44dd6a1 100644
--- a/go.sum
+++ b/go.sum
@@ -621,8 +621,8 @@ code.cloudfoundry.org/tlsconfig v0.45.0/go.mod h1:62TfSYz4O4pgggNLF0wEZOTr2Ztrsn
 code.cloudfoundry.org/workpool v0.0.0-20250911194158-1489753f182e h1:NsULHptleEmqtoC8j6A8J636L9APnGn8YC0c7vocLww=
 code.cloudfoundry.org/workpool v0.0.0-20250911194158-1489753f182e/go.mod h1:O9HdfntfyDvYRH9nh03XdpnGMbjyZVi8nb2Kh+6hDho=
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
-filippo.io/edwards25519 v1.1.0 h1:FNf4tywRC1HmFuKW5xopWpigGjJKiJSV0Cqo0cJWDaA=
-filippo.io/edwards25519 v1.1.0/go.mod h1:BxyFTGdWcka3PhytdK4V28tE5sGfRvvvRV7EaN4VDT4=
+filippo.io/edwards25519 v1.1.1 h1:YpjwWWlNmGIDyXOn8zLzqiD+9TyIlPhGFG96P39uBpw=
+filippo.io/edwards25519 v1.1.1/go.mod h1:BxyFTGdWcka3PhytdK4V28tE5sGfRvvvRV7EaN4VDT4=
 gioui.org v0.0.0-20210308172011-57750fc8a0a6/go.mod h1:RSH6KIUZ0p2xy5zHDxgAM4zumjgTw83q2ge/PI+yyw8=
 git.sr.ht/~sbinet/gg v0.3.1/go.mod h1:KGYtlADtqsqANL9ueOFkWymvzUvLMQllU5Ixo+8v3pc=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
diff --git a/vendor/filippo.io/edwards25519/extra.go b/vendor/filippo.io/edwards25519/extra.go
index d152d68f..ab2e44a5 100644
--- a/vendor/filippo.io/edwards25519/extra.go
+++ b/vendor/filippo.io/edwards25519/extra.go
@@ -265,6 +265,7 @@ func (v *Point) MultiScalarMult(scalars []*Scalar, points []*Point) *Point {
 	tmp1 := &projP1xP1{}
 	tmp2 := &projP2{}
 	// Lookup-and-add the appropriate multiple of each input point
+	v.Set(NewIdentityPoint())
 	for j := range tables {
 		tables[j].SelectInto(multiple, digits[j][63])
 		tmp1.Add(v, multiple) // tmp1 = v + x_(j,63)*Q in P1xP1 coords
diff --git a/vendor/modules.txt b/vendor/modules.txt
index 48e9d446..1f242bb4 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -59,7 +59,7 @@ code.cloudfoundry.org/tlsconfig
 # code.cloudfoundry.org/workpool v0.0.0-20250911194158-1489753f182e
 ## explicit
 code.cloudfoundry.org/workpool
-# filippo.io/edwards25519 v1.1.0
+# filippo.io/edwards25519 v1.1.1
 ## explicit; go 1.20
 filippo.io/edwards25519
 filippo.io/edwards25519/field