Fix dependency for terser (fixes #182)

Change-Id: I5442be64623425d7a58cecd835706b6bed86e95d
diff --git a/Changes b/Changes
index 5ae494f..dab8ece 100755
--- a/Changes
+++ b/Changes
@@ -1,4 +1,4 @@
-0.48 2023-01-09
+0.48 2023-01-26
         - Added support for NKJP tagset in annotation
           assistant. (diewald)
         - Remove deprecated 'auth_support' (since 0.31)
@@ -16,6 +16,7 @@
         - Introduce krill-indexer command via plugin. (diewald)
         - Introduce start-with-backend command via plugin. (diewald)
         - Update Mojolicious for security reasons. (diewald)
+        - Fix terser installation (fixes #182). (diewald)
 
         WARNING: Mojolicious 9.31 is a security update -
           updating is highly recommended.
diff --git a/package.json b/package.json
index b5ad5cb..0945416 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,7 @@
     "url": "https://github.com/KorAP/Kalamar.git"
   },
   "devDependencies": {
-    "grunt": "^1.0.4",
+    "grunt": "^1.5.3",
     "grunt-contrib-copy": "^1.0.0",
     "grunt-contrib-requirejs": "^1.0.0",
     "grunt-contrib-watch": "^1.1.0",
@@ -28,6 +28,7 @@
     "fsevents": "*"
   },
   "dependencies": {
-    "grunt-contrib-imagemin": "^4.0.0"
+    "grunt-contrib-imagemin": "^4.0.0",
+    "terser" : "^5.16.1"
   }
 }