diff --git a/.ci/requirements.txt b/.ci/requirements.txt
index 1347173..6bb3d4c 100644
--- a/.ci/requirements.txt
+++ b/.ci/requirements.txt
@@ -1,7 +1,7 @@
-Cython==0.29.10
+Cython==0.29.13
 aiohttp
 tinys3
 twine
 psutil
-pyOpenSSL==18.0.0
+pyOpenSSL==19.0.0
 flake8>=3.7.5
diff --git a/requirements.dev.txt b/requirements.dev.txt
index 82806a1..1d045eb 100644
--- a/requirements.dev.txt
+++ b/requirements.dev.txt
@@ -1,5 +1,5 @@
-Cython==0.29.10
+Cython==0.29.13
 Sphinx>=1.4.1
 psutil
-pyOpenSSL==18.0.0
+pyOpenSSL==19.0.0
 flake8>=3.7.5