diff --git a/README.md b/README.md
index 713ae10..dbe70a3 100644
--- a/README.md
+++ b/README.md
@@ -13,6 +13,10 @@ You only need to installl pyOpenSSL:
 
 `pip install pyopenssl`
 
+or
+
+`pip install -r requirements.txt`
+
 ## Usage
 
 ```
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..f0bff40
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1 @@
+pyopenssl