diff --git a/pyproject.toml b/pyproject.toml
index 1f8bb6f..0b4ecd5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -42,20 +42,20 @@ dependencies = [
 
 [project.optional-dependencies]
 crypto = [
-    "cryptography>=42.0.0",
+    "cryptography>=48.0.0",
 ]
 watch = [
     "watchdog>=6.0.0",
 ]
 full = [
-    "cryptography>=42.0.0",
+    "cryptography>=48.0.0",
     "watchdog>=6.0.0",
 ]
 dev = [
     "pytest>=8.0.0",
     "pytest-cov>=5.0.0",
     "ruff>=0.6.0",
-    "cryptography>=42.0.0",
+    "cryptography>=48.0.0",
     "watchdog>=6.0.0",
 ]