diff --git a/dev-python/cryptography/cryptography-1.8.1.ebuild b/dev-python/cryptography/cryptography-1.8.1.ebuild
index 16a98735e766f..0bfc42b8acc90 100644
--- a/dev-python/cryptography/cryptography-1.8.1.ebuild
+++ b/dev-python/cryptography/cryptography-1.8.1.ebuild
@@ -22,7 +22,7 @@ RDEPEND="
 	libressl? ( dev-libs/libressl )
 	$(python_gen_cond_dep '>=dev-python/cffi-1.4.1:=[${PYTHON_USEDEP}]' 'python*')
 	$(python_gen_cond_dep 'dev-python/enum34[${PYTHON_USEDEP}]' python2_7 python3_3 pypy{,3})
-	>=dev-python/idna-2.0[${PYTHON_USEDEP}]
+	>=dev-python/idna-2.1[${PYTHON_USEDEP}]
 	>=dev-python/asn1crypto-0.21.0[${PYTHON_USEDEP}]
 	dev-python/setuptools[${PYTHON_USEDEP}]
 	>=dev-python/six-1.4.1[${PYTHON_USEDEP}]