diff --git a/integration-tests/worker/CHANGELOG.md b/integration-tests/worker/CHANGELOG.md
index 8d8ed46e6..c1fc62ddd 100644
--- a/integration-tests/worker/CHANGELOG.md
+++ b/integration-tests/worker/CHANGELOG.md
@@ -1,5 +1,13 @@
 # @openfn/integration-tests-worker
 
+## 1.0.65
+
+### Patch Changes
+
+- Updated dependencies [ef1fb63]
+- Updated dependencies [606f23b]
+  - @openfn/ws-worker@1.9.0
+
 ## 1.0.64
 
 ### Patch Changes
diff --git a/integration-tests/worker/package.json b/integration-tests/worker/package.json
index 74c79ec98..61c1d2193 100644
--- a/integration-tests/worker/package.json
+++ b/integration-tests/worker/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@openfn/integration-tests-worker",
   "private": true,
-  "version": "1.0.64",
+  "version": "1.0.65",
   "description": "Lightning WOrker integration tests",
   "author": "Open Function Group <admin@openfn.org>",
   "license": "ISC",
diff --git a/integration-tests/worker/test/runs.test.ts b/integration-tests/worker/test/runs.test.ts
index 7c15b29df..220d51295 100644
--- a/integration-tests/worker/test/runs.test.ts
+++ b/integration-tests/worker/test/runs.test.ts
@@ -25,7 +25,8 @@ test.before(async () => {
       repoDir: path.resolve('tmp/repo/attempts'),
     },
     {
-      collectionsVersion: '1.0.0-next-f802225c',
+      collectionsVersion: '0.5.0',
+      collectionsUrl: 'http://localhost:4321/collections',
       runPublicKey: keys.public,
     }
   ));
@@ -45,6 +46,7 @@ const humanMb = (sizeInBytes: number) => Math.round(sizeInBytes / 1024 / 1024);
 const run = async (t, attempt) => {
   return new Promise<any>(async (done, reject) => {
     lightning.on('step:complete', ({ payload }) => {
+      console.log(payload);
       t.is(payload.reason, 'success');
 
       // TODO friendlier job names for this would be nice (rather than run ids)
diff --git a/packages/ws-worker/CHANGELOG.md b/packages/ws-worker/CHANGELOG.md
index bfb16057d..4cf3c4345 100644
--- a/packages/ws-worker/CHANGELOG.md
+++ b/packages/ws-worker/CHANGELOG.md
@@ -1,5 +1,12 @@
 # ws-worker
 
+## 1.8.2
+
+### Patch Changes
+
+- ef1fb63: Fix an issue running collections from an auto-loaded version
+- 606f23b: Allow steps to specify their own adaptor version
+
 ## 1.8.1
 
 ### Patch Changes
diff --git a/packages/ws-worker/README.md b/packages/ws-worker/README.md
index 829669c73..a417cb856 100644
--- a/packages/ws-worker/README.md
+++ b/packages/ws-worker/README.md
@@ -66,6 +66,20 @@ To manually trigger a claim, post to `/claim`:
 curl -X POST http://localhost:2222/claim
 ```
 
+## Collections
+
+To enable collections with a local lightning:
+
+```
+pnpm start -collections-url http://localhost:4000/collections
+```
+
+To use the monorepo adaptor version:
+
+```
+pnpm start --collections-version local --collections-url http://localhost:4000/collections
+```
+
 ## Architecture
 
 Lightning is expected to maintain a queue of runs. The Worker pulls those runs from the queue, via websocket, and sends them off to the Engine for execution.
diff --git a/packages/ws-worker/package.json b/packages/ws-worker/package.json
index 173208a43..3f997016c 100644
--- a/packages/ws-worker/package.json
+++ b/packages/ws-worker/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@openfn/ws-worker",
-  "version": "1.8.1",
+  "version": "1.8.2",
   "description": "A Websocket Worker to connect Lightning to a Runtime Engine",
   "main": "dist/index.js",
   "type": "module",
diff --git a/packages/ws-worker/src/server.ts b/packages/ws-worker/src/server.ts
index d04a4e3e6..b0b925ea1 100644
--- a/packages/ws-worker/src/server.ts
+++ b/packages/ws-worker/src/server.ts
@@ -60,9 +60,6 @@ export interface ServerApp extends Koa {
   engine: RuntimeEngine;
   options: ServerOptions;
   workloop?: Workloop;
-  // What version of the collections adaptor should we use?
-  // Can be set through CLI, or else it'll look up latest on startup
-  collectionsVersion?: string;
 
   execute: ({ id, token }: ClaimRun) => Promise<void>;
   destroy: () => void;
@@ -174,7 +171,7 @@ async function setupCollections(options: ServerOptions, logger: Logger) {
     'npm view @openfn/language-collections@latest version'
   );
   logger.log('Using collections version from @latest: ', version);
-  return version;
+  return version.trim();
 }
 
 function createServer(engine: RuntimeEngine, options: ServerOptions = {}) {
@@ -322,7 +319,7 @@ function createServer(engine: RuntimeEngine, options: ServerOptions = {}) {
 
   if (options.lightning) {
     setupCollections(options, logger).then((version) => {
-      app.collectionsVersion = version;
+      app.options.collectionsVersion = version;
       connect(app, logger, options);
     });
   } else {
diff --git a/packages/ws-worker/src/util/convert-lightning-plan.ts b/packages/ws-worker/src/util/convert-lightning-plan.ts
index 45a5e52e7..39629935e 100644
--- a/packages/ws-worker/src/util/convert-lightning-plan.ts
+++ b/packages/ws-worker/src/util/convert-lightning-plan.ts
@@ -88,8 +88,16 @@ export default (
       const job = step as Job;
       if (job.expression?.match(/(collections\.)/)) {
         hasCollections = true;
-        job.adaptors ??= [];
-        job.adaptors.push(`@openfn/language-collections@${collectionsVersion}`);
+        if (
+          !job.adaptors?.find((v) =>
+            v.startsWith('@openfn/language-collections')
+          )
+        ) {
+          job.adaptors ??= [];
+          job.adaptors.push(
+            `@openfn/language-collections@${collectionsVersion}`
+          );
+        }
       }
     });
     return hasCollections;
diff --git a/packages/ws-worker/test/util/convert-lightning-plan.test.ts b/packages/ws-worker/test/util/convert-lightning-plan.test.ts
index ed8f9da31..e193a7273 100644
--- a/packages/ws-worker/test/util/convert-lightning-plan.test.ts
+++ b/packages/ws-worker/test/util/convert-lightning-plan.test.ts
@@ -614,7 +614,36 @@ test('append the collections adaptor to jobs that use it', (t) => {
   t.deepEqual(b.adaptors, ['common', '@openfn/language-collections@1.0.0']);
 });
 
-test('append the collections credential to jobs that use it', (t) => {
+test('do not append the collections adaptor to jobs that already have it', (t) => {
+  const run: Partial<LightningPlan> = {
+    id: 'w',
+    jobs: [
+      createNode({
+        id: 'a',
+        body: 'collections.each("c", "k", (state) => state)',
+        adaptor: '@openfn/language-collections@latest',
+      }),
+    ],
+    triggers: [{ id: 't', type: 'cron' }],
+    edges: [createEdge('t', 'a')],
+  };
+
+  const { plan } = convertPlan(run as LightningPlan, {
+    collectionsVersion: '1.0.0',
+  });
+
+  const [_t, a] = plan.workflow.steps;
+
+  // @ts-ignore
+  t.deepEqual(a.adaptors, ['@openfn/language-collections@latest']);
+
+  t.deepEqual(plan.workflow.credentials, {
+    collections_token: true,
+    collections_endpoint: true,
+  });
+});
+
+test('append the collections credential to workflows that use it', (t) => {
   const run: Partial<LightningPlan> = {
     id: 'w',
     jobs: [