diff --git a/go.mod b/go.mod
index e0bf2ef..6aada47 100644
--- a/go.mod
+++ b/go.mod
@@ -4,4 +4,4 @@ go 1.25.0
 
 require github.com/robfig/cron v1.2.0
 
-require golang.org/x/crypto v0.50.0
+require golang.org/x/crypto v0.51.0
diff --git a/go.sum b/go.sum
index eaafe4f..4f4ccdd 100644
--- a/go.sum
+++ b/go.sum
@@ -1,4 +1,4 @@
 github.com/robfig/cron v1.2.0 h1:ZjScXvvxeQ63Dbyxy76Fj3AT3Ut0aKsyd2/tl3DTMuQ=
 github.com/robfig/cron v1.2.0/go.mod h1:JGuDeoQd7Z6yL4zQhZ3OPEVHB7fL6Ka6skscFHfmt2k=
-golang.org/x/crypto v0.50.0 h1:zO47/JPrL6vsNkINmLoo/PH1gcxpls50DNogFvB5ZGI=
-golang.org/x/crypto v0.50.0/go.mod h1:3muZ7vA7PBCE6xgPX7nkzzjiUq87kRItoJQM1Yo8S+Q=
+golang.org/x/crypto v0.51.0 h1:IBPXwPfKxY7cWQZ38ZCIRPI50YLeevDLlLnyC5wRGTI=
+golang.org/x/crypto v0.51.0/go.mod h1:8AdwkbraGNABw2kOX6YFPs3WM22XqI4EXEd8g+x7Oc8=
diff --git a/vendor/golang.org/x/crypto/pbkdf2/pbkdf2.go b/vendor/golang.org/x/crypto/pbkdf2/pbkdf2.go
index 28cd99c..b332122 100644
--- a/vendor/golang.org/x/crypto/pbkdf2/pbkdf2.go
+++ b/vendor/golang.org/x/crypto/pbkdf2/pbkdf2.go
@@ -2,24 +2,17 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-/*
-Package pbkdf2 implements the key derivation function PBKDF2 as defined in RFC
-2898 / PKCS #5 v2.0.
-
-A key derivation function is useful when encrypting data based on a password
-or any other not-fully-random data. It uses a pseudorandom function to derive
-a secure encryption key based on the password.
-
-While v2.0 of the standard defines only one pseudorandom function to use,
-HMAC-SHA1, the drafted v2.1 specification allows use of all five FIPS Approved
-Hash Functions SHA-1, SHA-224, SHA-256, SHA-384 and SHA-512 for HMAC. To
-choose, you can pass the `New` functions from the different SHA packages to
-pbkdf2.Key.
-*/
+// Package pbkdf2 implements the key derivation function PBKDF2 as defined in
+// RFC 8018 (PKCS #5 v2.1).
+//
+// This package is a wrapper for the PBKDF2 implementation in the
+// [crypto/pbkdf2] package. It is [frozen] and is not accepting new features.
+//
+// [frozen]: https://go.dev/wiki/Frozen
 package pbkdf2
 
 import (
-	"crypto/hmac"
+	"crypto/pbkdf2"
 	"hash"
 )
 
@@ -27,51 +20,11 @@ import (
 // []byte of length keylen that can be used as cryptographic key. The key is
 // derived based on the method described as PBKDF2 with the HMAC variant using
 // the supplied hash function.
-//
-// For example, to use a HMAC-SHA-1 based PBKDF2 key derivation function, you
-// can get a derived key for e.g. AES-256 (which needs a 32-byte key) by
-// doing:
-//
-//	dk := pbkdf2.Key([]byte("some password"), salt, 4096, 32, sha1.New)
-//
-// Remember to get a good random salt. At least 8 bytes is recommended by the
-// RFC.
-//
-// Using a higher iteration count will increase the cost of an exhaustive
-// search but will also make derivation proportionally slower.
 func Key(password, salt []byte, iter, keyLen int, h func() hash.Hash) []byte {
-	prf := hmac.New(h, password)
-	hashLen := prf.Size()
-	numBlocks := (keyLen + hashLen - 1) / hashLen
-
-	var buf [4]byte
-	dk := make([]byte, 0, numBlocks*hashLen)
-	U := make([]byte, hashLen)
-	for block := 1; block <= numBlocks; block++ {
-		// N.B.: || means concatenation, ^ means XOR
-		// for each block T_i = U_1 ^ U_2 ^ ... ^ U_iter
-		// U_1 = PRF(password, salt || uint(i))
-		prf.Reset()
-		prf.Write(salt)
-		buf[0] = byte(block >> 24)
-		buf[1] = byte(block >> 16)
-		buf[2] = byte(block >> 8)
-		buf[3] = byte(block)
-		prf.Write(buf[:4])
-		dk = prf.Sum(dk)
-		T := dk[len(dk)-hashLen:]
-		copy(U, T)
-
-		// U_n = PRF(password, U_(n-1))
-		for n := 2; n <= iter; n++ {
-			prf.Reset()
-			prf.Write(U)
-			U = U[:0]
-			U = prf.Sum(U)
-			for x := range U {
-				T[x] ^= U[x]
-			}
-		}
+	out, err := pbkdf2.Key(h, string(password), salt, iter, keyLen)
+	if err != nil {
+		// FIPS 140 enforcement, or an invalid key length.
+		panic(err)
 	}
-	return dk[:keyLen]
+	return out
 }
diff --git a/vendor/modules.txt b/vendor/modules.txt
index f6ab971..f05be1d 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -1,6 +1,6 @@
 # github.com/robfig/cron v1.2.0
 ## explicit
 github.com/robfig/cron
-# golang.org/x/crypto v0.50.0
+# golang.org/x/crypto v0.51.0
 ## explicit; go 1.25.0
 golang.org/x/crypto/pbkdf2