diff --git a/changelog.d/maintenance/11593-gemini-alias-target.md b/changelog.d/maintenance/11593-gemini-alias-target.md
new file mode 100644
index 0000000000..c2f26f43a0
--- /dev/null
+++ b/changelog.d/maintenance/11593-gemini-alias-target.md
@@ -0,0 +1 @@
+- **test(models):** follow #11503's retarget of the `gemini-3-pro-high` alias to the hyphenated catalog id ([#11593](https://github.com/diegosouzapw/OmniRoute/pull/11593))
diff --git a/tests/unit/t31-t33-t34-t38-model-specs.test.ts b/tests/unit/t31-t33-t34-t38-model-specs.test.ts
index 077c38a344..eeacca5d23 100644
--- a/tests/unit/t31-t33-t34-t38-model-specs.test.ts
+++ b/tests/unit/t31-t33-t34-t38-model-specs.test.ts
@@ -32,8 +32,12 @@ test("T31: antigravity static catalog exposes client-visible Gemini preview IDs"
   assert.ok(!staticIds.includes("gemini-claude-opus-4-5-thinking"));
 });
 
+// #11503 retargeted the -high alias from the dotted id to the hyphenated one, on the
+// grounds that the catalog spells it that way and the dotted form is not routable.
+// The two rungs therefore no longer share a spelling — pinned separately so a future
+// re-unification is a deliberate edit here rather than a silent drift.
 test("T31: legacy Gemini aliases resolve to Gemini 3.1 IDs", () => {
-  assert.equal(resolveDeprecatedAlias("gemini-3-pro-high"), "gemini-3.1-pro-high");
+  assert.equal(resolveDeprecatedAlias("gemini-3-pro-high"), "gemini-3-1-pro-high");
   assert.equal(resolveDeprecatedAlias("gemini-3-pro-low"), "gemini-3.1-pro-low");
 });