diff --git a/go.mod b/go.mod
index e5fb9fa..7276ed1 100644
--- a/go.mod
+++ b/go.mod
@@ -1,11 +1,12 @@
 module github.com/bufbuild/bufisk
 
-go 1.21
+go 1.24.0
+
 toolchain go1.24.1
 
 require aead.dev/minisign v0.2.1
 
 require (
-	golang.org/x/crypto v0.35.0 // indirect
-	golang.org/x/sys v0.30.0 // indirect
+	golang.org/x/crypto v0.45.0 // indirect
+	golang.org/x/sys v0.38.0 // indirect
 )
diff --git a/go.sum b/go.sum
index 0113896..c776799 100644
--- a/go.sum
+++ b/go.sum
@@ -1,6 +1,6 @@
 aead.dev/minisign v0.2.1 h1:Z+7HA9dsY/eGycYj6kpWHpcJpHtjAwGiJFvbiuO9o+M=
 aead.dev/minisign v0.2.1/go.mod h1:oCOjeA8VQNEbuSCFaaUXKekOusa/mll6WtMoO5JY4M4=
-golang.org/x/crypto v0.35.0 h1:b15kiHdrGCHrP6LvwaQ3c03kgNhhiMgvlhxHQhmg2Xs=
-golang.org/x/crypto v0.35.0/go.mod h1:dy7dXNW32cAb/6/PRuTNsix8T+vJAqvuIy5Bli/x0YQ=
-golang.org/x/sys v0.30.0 h1:QjkSwP/36a20jFYWkSue1YwXzLmsV5Gfq7Eiy72C1uc=
-golang.org/x/sys v0.30.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/crypto v0.45.0 h1:jMBrvKuj23MTlT0bQEOBcAE0mjg8mK9RXFhRH6nyF3Q=
+golang.org/x/crypto v0.45.0/go.mod h1:XTGrrkGJve7CYK7J8PEww4aY7gM3qMCElcJQ8n8JdX4=
+golang.org/x/sys v0.38.0 h1:3yZWxaJjBmCWXqhN1qh02AkOnCQ1poK6oF+a7xWL6Gc=
+golang.org/x/sys v0.38.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=