diff --git a/.github/pull_request_template.md b/.github/pull_request_template.md
index 55d779e0..f055d864 100644
--- a/.github/pull_request_template.md
+++ b/.github/pull_request_template.md
@@ -1 +1 @@
-resolve #1000 ←（`1000` の部分を実際の issue 番号に書き換えてください）
+resolve #2000 <!-- `2000` の部分を実際の issue 番号に書き換えてください -->
diff --git a/guide/api-environment-instances.md b/guide/api-environment-instances.md
index e737d52e..8c92541f 100644
--- a/guide/api-environment-instances.md
+++ b/guide/api-environment-instances.md
@@ -185,7 +185,7 @@ export class EnvironmentModuleGraph {
   invalidateModule(
     mod: EnvironmentModuleNode,
     seen: Set<EnvironmentModuleNode> = new Set(),
-    timestamp: number = Date.now(),
+    timestamp: number = monotonicDateNow(),
     isHmr: boolean = false,
   ): void