diff --git a/package.json b/package.json
index 78868fa..f420696 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "antlr4-c3",
-    "version": "3.1.0",
+    "version": "3.1.1",
     "description": "A code completion core implementation for ANTLR4 based parsers",
     "author": "Mike Lischke",
     "license": "MIT",
diff --git a/readme.md b/readme.md
index eeef639..29a3640 100644
--- a/readme.md
+++ b/readme.md
@@ -219,6 +219,12 @@ The last two options potentially create a lot of output which can significantly
 
 ## Release Notes
 
+### 3.1.1
+
+- Renamed a few interfaces to follow the interface naming rules (a leading I).
+- Merged PR #81 from Aaron Braunstein.
+- Upgraded all dependencies to their latest version.
+-
 ### 3.0.0
 
 BREAKING CHANGES: With this major version release the API has been changed to make it more consistent and easier to use. The most important changes are: