diff --git a/ChangeLog.md b/ChangeLog.md
index 581b069d322..34da4f4338c 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,9 +1,9 @@
 # Change Log
 
-### 2020-xx-xx - 5.6.0
+### 2021-01-15 - 5.6.0
 Autorest core version: 3.0.6318
 
-Modelerfour version: 4.15.421
+Modelerfour version: 4.15.442
 
 **New Features**
 
@@ -12,6 +12,7 @@ Modelerfour version: 4.15.421
 **Bug Fixes**
 
 - Wrap individual enum descriptions  #844
+- Bump `Modelerfour` minimum version to `4.15.442` to fix [circular reference error](https://github.com/Azure/autorest/issues/3630). Special thanks to @amrElroumy for this PR.  #866
 
 ### 2020-11-12 - 5.5.0
 Autorest core version: 3.0.6318
diff --git a/README.md b/README.md
index dfe3425798e..20f8427b809 100644
--- a/README.md
+++ b/README.md
@@ -30,7 +30,7 @@ pass-thru:
   - subset-reducer
 version: ^3.0.6318
 use-extension:
-  "@autorest/modelerfour": 4.15.432
+  "@autorest/modelerfour": 4.15.442
 
 modelerfour:
   group-parameters: true
diff --git a/package.json b/package.json
index 0e48257f172..67360a0544e 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@autorest/python",
-  "version": "5.5.0",
+  "version": "5.6.0",
   "description": "The Python extension for generators in AutoRest.",
   "scripts": {
     "prepare": "node run-python3.js prepare.py",