diff --git a/package.json b/package.json
index 4ade82ba86..478428883f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "jisg",
-  "version": "0.9.99",
+  "version": "0.9.999",
   "description": "Implementations of select OEIS integer sequences in JavaScript.",
   "keywords": [
     "integer",
diff --git a/src/version.ts b/src/version.ts
index 96a659e2fe..d53a738da1 100644
--- a/src/version.ts
+++ b/src/version.ts
@@ -1 +1 @@
-export default '0.9.99'
+export default '0.9.999'