diff --git a/CryptGuardv2/requirements.lock.txt b/CryptGuardv2/requirements.lock.txt
index e4c9b2b..e918a17 100644
--- a/CryptGuardv2/requirements.lock.txt
+++ b/CryptGuardv2/requirements.lock.txt
@@ -22,7 +22,7 @@ cffi==2.0.0
     #   pynacl
 coverage[toml]==7.11.0
     # via pytest-cov
-cryptography==46.0.1
+cryptography==49.0.0
     # via -r requirements.txt
 hypothesis==6.142.5
     # via -r requirements.txt
diff --git a/CryptGuardv2/requirements.txt b/CryptGuardv2/requirements.txt
index d6340d5..94e0f1b 100644
--- a/CryptGuardv2/requirements.txt
+++ b/CryptGuardv2/requirements.txt
@@ -1,4 +1,4 @@
-# ======================================
+# ======================================
 # CryptGuard — dependências completas
 # ======================================
 # Core crypto/runtime
@@ -11,7 +11,7 @@ psutil>=5.9
 zxcvbn>=4.5
 
 # Cripto adicional (HKDF, etc.)
-cryptography>=42
+cryptography>=49.0.0
 
 # GUI (Qt + Tk theme)
 PySide6>=6.9