diff --git a/CHANGELOG.md b/CHANGELOG.md
index cc3da24..b8dae27 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # Changelog
 
-## Unreleased changes
+## [3.1.0] - 2020-12-01
 
 ### Added
 - Added `Promise.fold` (#47)
diff --git a/lib/README.md b/lib/README.md
index 42e3f4c..cde6c90 100644
--- a/lib/README.md
+++ b/lib/README.md
@@ -357,7 +357,7 @@ docs:
       static: true
 
     - name: fold
-      since: unreleased
+      since: 3.1.0
       desc: |
         Folds an array of values or promises into a single value. The array is traversed sequentially.
 
diff --git a/rotriever.toml b/rotriever.toml
index 09243a6..69b39d9 100644
--- a/rotriever.toml
+++ b/rotriever.toml
@@ -1,6 +1,6 @@
 [package]
 name = "evaera/roblox-lua-promise"
-version = "3.0.1"
+version = "3.1.0"
 author = "evaera"
 content_root = "lib"
 license = "MIT"