diff --git a/README.md b/README.md
index d652d11..843eba5 100644
--- a/README.md
+++ b/README.md
@@ -197,7 +197,7 @@ $ pip install pandas_ta[full]
 
 Development Version
 -------------------
-The _development_ version, _0.3.65b_, includes _numerous_ bug fixes, speed improvements and better documentation since release, _0.3.14b_.
+The _development_ version, _0.3.66b_, includes _numerous_ bug fixes, speed improvements and better documentation since release, _0.3.14b_.
 ```sh
 $ pip install -U git+https://github.com/twopirllc/pandas-ta.git@development
 ```
diff --git a/setup.py b/setup.py
index e3a5145..9d86cb9 100644
--- a/setup.py
+++ b/setup.py
@@ -20,7 +20,7 @@ setup(
         "pandas_ta.volatility",
         "pandas_ta.volume"
     ],
-    version=".".join(("0", "3", "65b")),
+    version=".".join(("0", "3", "66b")),
     description=long_description,
     long_description=long_description,
     author="Kevin Johnson",