diff --git a/bucket/ammonite.json b/bucket/ammonite.json
index cf62f159a7..4dc857cadd 100644
--- a/bucket/ammonite.json
+++ b/bucket/ammonite.json
@@ -1,11 +1,11 @@
 {
-    "version": "1.9.8",
+    "version": "1.9.9",
     "license": "MIT",
-    "url": "https://github.com/lihaoyi/Ammonite/releases/download/1.9.8/2.12-1.9.8#/amm.bat",
+    "url": "https://github.com/lihaoyi/Ammonite/releases/download/1.9.9/2.12-1.9.9#/amm.bat",
     "bin": "amm.bat",
     "homepage": "http://ammonite.io",
     "description": "Ammonite lets you use the Scala language for scripting purposes: in the REPL, as scripts, as a library, or as a standalone systems shell.",
-    "hash": "dd27cc1b0d36dc22504ca5f743f6194876d94a296b62c29bb32b948a6c4f053e",
+    "hash": "278465c5a6d35639c0fa929cca654e6d0d34e8e4b89ad2f013eb68b0599727ff",
     "checkver": {
         "github": "https://github.com/lihaoyi/Ammonite"
     },