diff --git a/_config.yml b/_config.yml
index 7b2e7fa..5a4216f 100644
--- a/_config.yml
+++ b/_config.yml
@@ -110,8 +110,8 @@ workshop_site: "https://carpentries.github.io/workshop-template"
 cc_by_human: "https://creativecommons.org/licenses/by/4.0/"
 
 # Surveys.
-pre_survey: "https://carpentries.typeform.com/to/wi32rS?slug="
-post_survey: "https://carpentries.typeform.com/to/UgVdRQ?slug="
+pre_survey: "https://carpentries.typeform.com/to/CvmMM8re?slug="
+post_survey: "https://carpentries.typeform.com/to/hIg7dK3r?slug="
 
 # Start time in minutes (0 to be clock-independent, 540 to show a start at 09:00 am).
 start_time: 0
diff --git a/bin/boilerplate/_config.yml b/bin/boilerplate/_config.yml
index f2ca373..ca5de51 100644
--- a/bin/boilerplate/_config.yml
+++ b/bin/boilerplate/_config.yml
@@ -69,8 +69,8 @@ workshop_site: "https://carpentries.github.io/workshop-template"
 cc_by_human: "https://creativecommons.org/licenses/by/4.0/"
 
 # Surveys.
-pre_survey: "https://carpentries.typeform.com/to/wi32rS#slug="
-post_survey: "https://carpentries.typeform.com/to/UgVdRQ#slug="
+pre_survey: "https://carpentries.typeform.com/to/CvmMM8re?slug="
+post_survey: "https://carpentries.typeform.com/to/hIg7dK3r?slug="
 instructor_pre_survey: "https://carpentries.typeform.com/to/QVOarK#slug="
 instructor_post_survey: "https://carpentries.typeform.com/to/cjJ9UP#slug="
 
diff --git a/index.md b/index.md
index c195024..7e07d1b 100644
--- a/index.md
+++ b/index.md
@@ -16,7 +16,7 @@ enddate: 2024-05-31        # machine-readable end date for the workshop in YYYY-
 instructor: ["ニッタ ジョエル", "西田 孝三"] # boxed, comma-separated list of instructors' names as strings, like ["Kay McNulty", "Betty Jennings", "Betty Snyder"]
 helper: ["大田 達郎", "露崎 弘毅"]    # boxed, comma-separated list of helpers' names, like ["Marlyn Wescoff", "Fran Bilas", "Ruth Lichterman"]
 email: ["joelnitta@chiba-u.jp"]    # boxed, comma-separated list of contact email addresses for the host, lead instructor, or whoever else is handling questions, like ["marlyn.wescoff@example.org", "fran.bilas@example.org", "ruth.lichterman@example.org"]
-collaborative_notes:  # optional: URL for the workshop collaborative notes, e.g. an Etherpad or Google Docs document (e.g., https://pad.carpentries.org/2015-01-01-euphoria)
+collaborative_notes: https://hackmd.io/@swcarpentry-ja/rkXVzlJV0 # optional: URL for the workshop collaborative notes, e.g. an Etherpad or Google Docs document (e.g., https://pad.carpentries.org/2015-01-01-euphoria)
 eventbrite:           # optional: alphanumeric key for Eventbrite registration, e.g., "1234567890AB" (if Eventbrite is being used)
 ---
 
@@ -310,14 +310,11 @@ available at https://codimd.carpentries.org
 {% comment %}
 SURVEYS - DO NOT EDIT SURVEY LINKS
 {% endcomment %}
-{% comment %}
 <h2 id="surveys">アンケート</h2>
 <p>ワークショップの前後に、これらのアンケートに必ずお答えください。</p>
 <p><a href="{{ site.pre_survey }}{{ site.github.project_title }}">ワークショップ前のアンケート</a></p>
 <p><a href="{{ site.post_survey }}{{ site.github.project_title }}">ワークショップ後のアンケート</a></p>
 <hr/>
-{% endcomment %}
-
 
 {% comment %}
 SCHEDULE