diff --git a/go.sum b/go.sum
index 0b41a2d6..76799adb 100644
--- a/go.sum
+++ b/go.sum
@@ -2385,8 +2385,6 @@ github.com/shurcooL/go-goon v0.0.0-20170922171312-37c2f522c041/go.mod h1:N5mDOms
 github.com/shurcooL/httpfs v0.0.0-20171119174359-809beceb2371/go.mod h1:ZY1cvUeJuFPAdZ/B6v7RHavJWZn2YPVFQ1OSXhCGOkg=
 github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeVRXNmyL/1OwPU0+IJeTBvfc=
 github.com/shurcooL/vfsgen v0.0.0-20180121065927-ffb13db8def0/go.mod h1:TrYk7fJVaAttu97ZZKrO9UbRa8izdowaMIZcxYMbVaw=
-github.com/sigstore/cosign v1.3.1 h1:booDYHEVPQfe1TIrCcTJ3LZCJk1bLzoumbdvaQ3eH0o=
-github.com/sigstore/cosign v1.3.1/go.mod h1:Op66Y4LNtFLhtptpbSzxnSTikWsBthTXoKLMApFTcu4=
 github.com/sigstore/cosign v1.5.2 h1:YMVIjSLQ+6fL8m3deqLcg7aRqGbU/U6sJvcU0aT4fSM=
 github.com/sigstore/cosign v1.5.2/go.mod h1:USeA+jISR3H86hfgsTn1UJYKC9mgEE7/o+dJ7sk63MY=
 github.com/sigstore/fulcio v0.1.2-0.20210831152525-42f7422734bb h1:smRYK5Ii+6MzPPz6yisB65v2Pam5oHPOTLDlxyM3qYY=