diff --git a/.changeset/wise-drinks-behave.md b/.changeset/wise-drinks-behave.md
new file mode 100644
index 000000000..b213aa97b
--- /dev/null
+++ b/.changeset/wise-drinks-behave.md
@@ -0,0 +1,5 @@
+---
+'@openfn/engine-multi': patch
+---
+
+Engine: don't try to autoinstall adaptor versions with an explicit path
diff --git a/packages/engine-multi/src/api/autoinstall.ts b/packages/engine-multi/src/api/autoinstall.ts
index 8e165d531..04798a6ec 100644
--- a/packages/engine-multi/src/api/autoinstall.ts
+++ b/packages/engine-multi/src/api/autoinstall.ts
@@ -61,6 +61,10 @@ const autoinstall = async (context: ExecutionContext): Promise<ModulePaths> => {
   ) => {
     // Check whether we still need to do any work
     for (const a of adaptors) {
+      if (a.match('=')) {
+        // Ignore adaptors with explicit paths (ie monorepo @local)
+        continue;
+      }
       const { name, version } = getNameAndVersion(a);
       if (await isInstalledFn(a, repoDir, logger)) {
         continue;