diff --git a/composer.json b/composer.json
index 3d2ddcd..4b452a2 100644
--- a/composer.json
+++ b/composer.json
@@ -21,7 +21,7 @@
 	"require": {
 		"php": ">=5.6.3",
 		"ext-openssl": "*",
-		"sop/crypto-util": "^1.8.0",
+		"sop/crypto-util": "^1.10.0",
 		"sop/aes-kw": "^1.0.0",
 		"sop/gcm": "^1.0.0"
 	},