diff --git a/go.mod b/go.mod
index 04e3946..17d20d8 100644
--- a/go.mod
+++ b/go.mod
@@ -2,17 +2,41 @@ module github.com/square/certigo
 
 require (
 	github.com/Masterminds/sprig v2.22.0+incompatible
-	github.com/fatih/color v1.13.0
-	github.com/google/certificate-transparency-go v1.1.4
+	github.com/fatih/color v1.18.0
+	github.com/google/certificate-transparency-go v1.3.2
 	github.com/mattn/go-colorable v0.1.14
 	github.com/mwitkow/go-http-dialer v0.0.0-20161116154839-378f744fb2b8
 	github.com/stretchr/testify v1.10.0
-	github.com/zmap/zcrypto v0.0.0-20220402174210-599ec18ecbac
-	github.com/zmap/zlint/v3 v3.3.1
-	golang.org/x/crypto v0.0.0-20220411220226-7b82a4e95df4
+	github.com/zmap/zcrypto v0.0.0-20250618174828-7ca6a82cf2d4
+	github.com/zmap/zlint/v3 v3.6.6
+	golang.org/x/crypto v0.39.0
 	gopkg.in/alecthomas/kingpin.v2 v2.2.6
-	gopkg.in/asn1-ber.v1 v1.0.0-20170511165959-379148ca0225
-	software.sslmate.com/src/go-pkcs12 v0.2.0
+	gopkg.in/asn1-ber.v1 v1.0.0-20181015200546-f715ec2f112d
+	software.sslmate.com/src/go-pkcs12 v0.5.0
 )
 
-go 1.23
+require (
+	github.com/Masterminds/goutils v1.1.1 // indirect
+	github.com/Masterminds/semver v1.5.0 // indirect
+	github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751 // indirect
+	github.com/alecthomas/units v0.0.0-20240927000941-0f3dac36c52b // indirect
+	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/huandu/xstrings v1.5.0 // indirect
+	github.com/imdario/mergo v0.3.16 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/mitchellh/copystructure v1.2.0 // indirect
+	github.com/mitchellh/reflectwalk v1.0.2 // indirect
+	github.com/pelletier/go-toml v1.9.5 // indirect
+	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
+	github.com/weppos/publicsuffix-go v0.40.3-0.20250617082559-9b2e24a9e482 // indirect
+	golang.org/x/net v0.41.0 // indirect
+	golang.org/x/sys v0.33.0 // indirect
+	golang.org/x/term v0.32.0 // indirect
+	golang.org/x/text v0.26.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)
+
+go 1.23.0
+
+toolchain go1.23.5