diff --git a/setup.py b/setup.py
index ea3662df..35bc7959 100644
--- a/setup.py
+++ b/setup.py
@@ -17,7 +17,7 @@
         ]
 
 DEV_REQUIRES = [
-    "pyro-ppl==1.8.5",
+    "pyro-ppl==1.8.6",
     "torch",   "plotly.express", 
     "scipy",  
     "chirho @ git+https://github.com/BasisResearch/chirho.git@master",