diff --git a/setup.py b/setup.py
index 322ebbe..bd23551 100644
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@
 
 setup(
     name="alleycat-reactive",
-    version="0.4.7",
+    version="0.4.8",
     author="Xavier Cho",
     author_email="mysticfallband@gmail.com",
     description="A simple Python library to provide an API to implement the Reactive Object Pattern (ROP).",
@@ -13,7 +13,7 @@
     long_description_content_type="text/markdown",
     url="https://github.com/mysticfall/alleycat-reactive",
     packages=find_namespace_packages(include=["alleycat.*"]),
-    install_requires=["returns==0.15.0", "rx==3.1.1"],
+    install_requires=["returns==0.17.0", "rx==3.2.0"],
     classifiers=[
         "Programming Language :: Python :: 3",
         "License :: OSI Approved :: MIT License",