diff --git a/go.mod b/go.mod
index 471e37c..b336042 100644
--- a/go.mod
+++ b/go.mod
@@ -5,7 +5,7 @@ go 1.20
 require (
 	github.com/google/certificate-transparency-go v1.1.7
 	github.com/google/go-cmp v0.6.0
-	golang.org/x/crypto v0.19.0
+	golang.org/x/crypto v0.20.0
 )
 
 require (
diff --git a/go.sum b/go.sum
index 0af2820..6e701c6 100644
--- a/go.sum
+++ b/go.sum
@@ -5,7 +5,7 @@ github.com/google/certificate-transparency-go v1.1.7 h1:IASD+NtgSTJLPdzkthwvAG1Z
 github.com/google/certificate-transparency-go v1.1.7/go.mod h1:FSSBo8fyMVgqptbfF6j5p/XNdgQftAhSmXcIxV9iphE=
 github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
 github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
-golang.org/x/crypto v0.19.0 h1:ENy+Az/9Y1vSrlrvBSyna3PITt4tiZLf7sgCjZBX7Wo=
-golang.org/x/crypto v0.19.0/go.mod h1:Iy9bg/ha4yyC70EfRS8jz+B6ybOBKMaSxLj6P6oBDfU=
+golang.org/x/crypto v0.20.0 h1:jmAMJJZXr5KiCw05dfYK9QnqaqKLYXijU23lsEdcQqg=
+golang.org/x/crypto v0.20.0/go.mod h1:Xwo95rrVNIoSMx9wa1JroENMToLWn3RNVrTBpLHgZPQ=
 k8s.io/klog/v2 v2.100.1 h1:7WCHKK6K8fNhTqfBhISHQ97KrnJNFZMcQvKp7gP/tmg=
 k8s.io/klog/v2 v2.100.1/go.mod h1:y1WjHnz7Dj687irZUWR/WLkLc5N1YHtjLdmgWjndZn0=