diff --git a/.changeset/pin-platform-sdk-range.md b/.changeset/pin-platform-sdk-range.md
new file mode 100644
index 0000000..5ba6b4c
--- /dev/null
+++ b/.changeset/pin-platform-sdk-range.md
@@ -0,0 +1,9 @@
+---
+'@commercetools/sync-actions': patch
+---
+
+Replace the `latest` version range for `@commercetools/platform-sdk` with `^9.4.0`.
+
+The `latest` descriptor re-resolved on every lockfile refresh and crossed major boundaries without review, which is how the 8.x to 9.x upgrade landed unannounced. A caret range matches the other packages in this repository and routes future updates through reviewable dependency PRs, with major upgrades gated behind explicit approval.
+
+This is a dependency-declaration change only. The public API and observable behavior of `@commercetools/sync-actions` are unchanged.
diff --git a/packages/sync-actions/package.json b/packages/sync-actions/package.json
index ee85057..b873c68 100644
--- a/packages/sync-actions/package.json
+++ b/packages/sync-actions/package.json
@@ -28,7 +28,7 @@
     "test": "jest --runInBand"
   },
   "dependencies": {
-    "@commercetools/platform-sdk": "latest",
+    "@commercetools/platform-sdk": "^9.4.0",
     "esbuild": "^0.25.4",
     "fast-equals": "^2.0.0",
     "jest": "^29.7.0",
diff --git a/packages/sync-actions/test/recurring-orders-sync.spec.ts b/packages/sync-actions/test/recurring-orders-sync.spec.ts
index ba0bc0d..c16612a 100644
--- a/packages/sync-actions/test/recurring-orders-sync.spec.ts
+++ b/packages/sync-actions/test/recurring-orders-sync.spec.ts
@@ -129,11 +129,11 @@ describe('Actions', () => {
 
   test('should build `setOrderSkipConfiguration` action', () => {
     const before: Partial<RecurringOrder> = {
-      skipConfiguration: { type: 'counter', totalToSkip: 2, skipped: 1 },
+      skipConfiguration: { type: 'Counter', totalToSkip: 2, skipped: 1 },
     };
     const now: Partial<RecurringOrder> = {
       skipConfiguration: {
-        type: 'counter',
+        type: 'Counter',
         totalToSkip: 5,
         skipped: 0,
       },
diff --git a/yarn.lock b/yarn.lock
index 6673cbb..f651893 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1826,12 +1826,12 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@commercetools/platform-sdk@npm:latest":
-  version: 9.4.0
-  resolution: "@commercetools/platform-sdk@npm:9.4.0"
+"@commercetools/platform-sdk@npm:^9.4.0":
+  version: 9.5.0
+  resolution: "@commercetools/platform-sdk@npm:9.5.0"
   dependencies:
     "@commercetools/ts-client": "npm:^5.0.2"
-  checksum: 10c0/994ee28f20f1c607a56f98136ff71a2b317363ff755518fc398433ae704966e92faaa09752c4c3d6eecb4b10b437fa5e56815e4960c24cf910c32394991cee99
+  checksum: 10c0/738d841844dce697cd90d3cac647f577eb347a61d74dd3d4be8591d3d4766807be26c0b584a7910869ceaff3b25796470d41e906da69ccf843e950c5b10c8333
   languageName: node
   linkType: hard
 
@@ -1864,7 +1864,7 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "@commercetools/sync-actions@workspace:packages/sync-actions"
   dependencies:
-    "@commercetools/platform-sdk": "npm:latest"
+    "@commercetools/platform-sdk": "npm:^9.4.0"
     esbuild: "npm:^0.25.4"
     fast-equals: "npm:^2.0.0"
     jest: "npm:^29.7.0"