diff --git a/index.html b/index.html
index d3d5209..cc9daeb 100644
--- a/index.html
+++ b/index.html
@@ -47,9 +47,9 @@ <h3>But what <i>is</i> an RSE?</h3>
       <h3> Important Dates </h3>
       <ul>
       <li><b>Submissions open</b>: Monday, February 12, 2024</li>
-      <li><b>Workshops, Tutorials, and BoF submissions due</b>: Friday, April 5, 2024 - <b>EXTENDED</b></li>
+      <li><b>Workshops, Tutorials, and BoF submissions due</b>: Friday, April 5, 2024
       <li><b>Papers and Notebooks due</b>: Monday, June 3, 2024 - <b>EXTENDED</b></li>
-      <li><b>Poster and Talk abstracts due</b>: Monday, June 3, 2024
+      <li><b>Poster and Talk abstracts due</b>: Monday, June 17, 2024 - <b>EXTENDED</b></li>
       <li><b>Conference Date</b>: October 15-17, 2024, Albuquerque, NM</li>
       </ul>
 
diff --git a/pages/about/dates.md b/pages/about/dates.md
index 1ad7444..df3255c 100644
--- a/pages/about/dates.md
+++ b/pages/about/dates.md
@@ -12,7 +12,7 @@ set_last_modified: true
 - **Submissions open**: Monday, February 12 for all but notebooks. Notebooks to open Monday, February 26.
 - **BoFs, Workshops, and Tutorials**: Due Friday, April 5. BoF and Workshop notifications Friday, May 10. Tutorial notifications Tuesday, May 21.
 - **Papers and Notebooks**: Due Monday, June 3. Notifications Wednesday, July 3.
-- **Posters and Talks**: Due Monday, June 3. Notifications Wednesday, July 3.
+- **Posters and Talks**: Due Monday, June 17. Notifications Wednesday, July 17.
 - **Camera-ready submissions (Notebooks, Papers)**: Friday, August 9
 
 ## Conference
diff --git a/pages/participate/participate.md b/pages/participate/participate.md
index 60d723f..465f66b 100644
--- a/pages/participate/participate.md
+++ b/pages/participate/participate.md
@@ -44,7 +44,7 @@ Accepted abstracts will be placed on the website ahead of the conference.
 - **Submissions open**: Monday, February 12 for all but notebooks. Notebooks to open Monday, February 26.
 - **BoFs, Workshops, and Tutorials**: Due Friday, April 5. BoF and Workshop notifications Friday, May 10. Tutorial notifications Tuesday, May 21.
 - **Papers and Notebooks**: Due Monday, June 3. Notifications Wednesday, July 3.
-- **Posters and Talks**: Due Monday, June 3. Notifications Wednesday, July 3.
+- **Posters and Talks**: Due Monday, June 17. Notifications Wednesday, July 17.
 - **Camera-ready submissions (Notebooks, Papers)**: Friday, August 9
 
 ## Birds of a Feather (BoFs)