diff --git a/js/package.json b/js/package.json
index 8f09a3c..0316cdf 100644
--- a/js/package.json
+++ b/js/package.json
@@ -53,7 +53,7 @@
   "devDependencies": {
     "@finos/perspective-esbuild-plugin": "^3.2.1",
     "@playwright/test": "^1.56.1",
-    "@prospective.co/procss": "^0.1.17",
+    "@prospective.co/procss": "^0.1.18",
     "cpy": "^12.1.0",
     "esbuild": "^0.27.0",
     "esbuild-plugin-less": "^1.3.35",
diff --git a/js/pnpm-lock.yaml b/js/pnpm-lock.yaml
index e7a1a70..cca64ee 100644
--- a/js/pnpm-lock.yaml
+++ b/js/pnpm-lock.yaml
@@ -15,8 +15,8 @@ importers:
         specifier: ^1.56.1
         version: 1.57.0
       '@prospective.co/procss':
-        specifier: ^0.1.17
-        version: 0.1.17
+        specifier: ^0.1.18
+        version: 0.1.18
       cpy:
         specifier: ^12.1.0
         version: 12.1.0
@@ -220,8 +220,8 @@ packages:
     engines: {node: '>=18'}
     hasBin: true
 
-  '@prospective.co/procss@0.1.17':
-    resolution: {integrity: sha512-jZCbEji9gTgJIJ41a0VQQV8GARUNKp9ils8/6347fbNkGBtA3cRwhQfRAxnqc0dhyo6pTSjMSflqop5ToIiSwQ==}
+  '@prospective.co/procss@0.1.18':
+    resolution: {integrity: sha512-odl+Vd/Lm2XdkB223/eghsGS4A5x5q8D9f/vCei2Wb/ljyLCGFWvP7w4Dtglid9xpvDCpJZtogeZASLcitMxug==}
 
   '@sindresorhus/merge-streams@4.0.0':
     resolution: {integrity: sha512-tlqY9xq5ukxTUZBmoOp+m61cqwQD5pHJtFY3Mn8CA8ps6yghLH/Hw8UPdqg4OLmFW3IFlcXnQNmo/dh8HzXYIQ==}
@@ -1073,6 +1073,7 @@ packages:
   tar@6.2.1:
     resolution: {integrity: sha512-DZ4yORTwrbTj/7MZYq2w+/ZFdI6OZ/f9SFHR+71gIVUZhOQPHzVCLpvRnPgyaMpfWxxk/4ONva3GQSyNIKRv6A==}
     engines: {node: '>=10'}
+    deprecated: Old versions of tar are not supported, and contain widely publicized security vulnerabilities, which have been fixed in the current version. Please update. Support for old versions may be purchased (at exorbitant rates) by contacting i@izs.me
 
   to-regex-range@5.0.1:
     resolution: {integrity: sha512-65P7iz6X5yEr1cwcgvQxbbIw7Uk3gOy5dIdtZ4rDveLqhrdJP+Li/Hx6tyK0NEb+2GCyneCMJiGqrADCSNk8sQ==}
@@ -1267,7 +1268,7 @@ snapshots:
     dependencies:
       playwright: 1.57.0
 
-  '@prospective.co/procss@0.1.17': {}
+  '@prospective.co/procss@0.1.18': {}
 
   '@sindresorhus/merge-streams@4.0.0': {}