diff --git a/requirements.txt b/requirements.txt
index 331a9399..a6a2a4c8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 # Chaquopy runtime dependencies — kept as a separate requirements.txt because
 # Chaquopy's Gradle plugin reads this file directly via pip { install "-r" }.
 # Pinned to versions with prebuilt Chaquopy wheels.
-cryptography==42.0.8
+cryptography==48.0.1
 ifaddr==0.2.0