diff --git a/.changeset/ready-mangos-boil.md b/.changeset/ready-mangos-boil.md
new file mode 100644
index 0000000..d4b0bd2
--- /dev/null
+++ b/.changeset/ready-mangos-boil.md
@@ -0,0 +1,5 @@
+---
+"@changesets/action": patch
+---
+
+Fixed usage of `--from-publish-plan` flag used by the `/pack` subaction
diff --git a/src/pack/index.ts b/src/pack/index.ts
index 715fcfb..e8c5b44 100644
--- a/src/pack/index.ts
+++ b/src/pack/index.ts
@@ -49,7 +49,7 @@ async function pack(
 ) {
   const cliArgs = ["pack", "--out-dir", args.outDir];
   if (args.publishPlanPath) {
-    cliArgs.push("--from-plan", args.publishPlanPath);
+    cliArgs.push("--from-publish-plan", args.publishPlanPath);
   }
 
   await execChangesetsCli(cliArgs, {