diff --git a/_posts/2024-11-15-en-call-for-proposals.md b/_posts/2024-11-15-en-call-for-proposals.md
index d5f9107727..0d6e7a5c61 100644
--- a/_posts/2024-11-15-en-call-for-proposals.md
+++ b/_posts/2024-11-15-en-call-for-proposals.md
@@ -10,7 +10,7 @@ categories: posts
 The [English edition of Programming Historian](/en/lessons/) seeks proposals for new original lessons or translations to be considered for publication in 2025.
 
 **Submissions Open**: 15 November 2024  
-**Submissions Close**: 15 January 2025
+**Submissions Close**: 31 January 2025 (extended deadline)
 
 ## What is a _Programming Historian_ lesson?
 
diff --git a/en/author-guidelines.md b/en/author-guidelines.md
index 2132bba73c..25143e0401 100755
--- a/en/author-guidelines.md
+++ b/en/author-guidelines.md
@@ -20,7 +20,7 @@ These guidelines have been developed to help you understand the process of creat
 ## Step 1: Proposing a New Lesson
 
 <div class="alert alert-success">
-Our English journal is currently seeking proposals for new original lessons or translations to be considered for publication in 2025. Learn more in our <a href="/posts/en-call-for-proposals">call for proposals</a> (open until 15 January 2025). Submissions to our <a href="/es/guia-para-autores#paso-1-proponer-una-nueva-lección">Spanish</a>, <a href="/fr/consignes-auteurs#étape-1-proposer-une-nouvelle-leçon">French</a> and <a href="/pt/directrizes-autor#etapa-1-propor-uma-nova-lição">Portuguese</a> journals are open year-round.
+Our English journal is currently seeking proposals for new original lessons or translations to be considered for publication in 2025. Learn more in our <a href="/posts/en-call-for-proposals">call for proposals</a>, open until 31 January 2025 (extended deadline). Submissions to our <a href="/es/guia-para-autores#paso-1-proponer-una-nueva-lección">Spanish</a>, <a href="/posts/appel-a-propositions">French</a> and <a href="/pt/directrizes-autor#etapa-1-propor-uma-nova-lição">Portuguese</a> journals are open year-round.
 </div>
 
 You can get a sense of what we publish by looking through our [published lessons]({{site.baseurl}}/en/lessons), reading our [reviewer guidelines]({{site.baseurl}}/en/reviewer-guidelines) or browsing [lessons in development](https://github.com/programminghistorian/ph-submissions/tree/gh-pages/en/drafts). Please also take a moment to check our [Lesson Concordance document](https://docs.google.com/spreadsheets/d/1vrvZTygZLfQRoQildD667Xcgzhf_reQC8Nq4OD-BRIA/edit#gid=0) to see which methods we have already covered in our published or forthcoming lessons. 
diff --git a/en/contribute.md b/en/contribute.md
index 3743b7619a..27c9bc946a 100755
--- a/en/contribute.md
+++ b/en/contribute.md
@@ -11,7 +11,7 @@ The _Programming Historian_ runs on the far-from-endless energy of volunteers, a
 ## Write a new lesson
 
 <div class="alert alert-success">
-Our English journal is currently seeking proposals for new original lessons or translations to be considered for publication in 2025. Learn more in our <a href="/posts/en-call-for-proposals">call for proposals</a> (open until 15 January 2025). Submissions to our <a href="/es/guia-para-autores#paso-1-proponer-una-nueva-lección">Spanish</a>, <a href="/fr/consignes-auteurs#étape-1-proposer-une-nouvelle-leçon">French</a> and <a href="/pt/directrizes-autor#etapa-1-propor-uma-nova-lição">Portuguese</a> journals are open year-round.
+Our English journal is currently seeking proposals for new original lessons or translations to be considered for publication in 2025. Learn more in our <a href="/posts/en-call-for-proposals">call for proposals</a>, open until 31 January 2025 (extended deadline). Submissions to our <a href="/es/guia-para-autores#paso-1-proponer-una-nueva-lección">Spanish</a>, <a href="/posts/appel-a-propositions">French</a> and <a href="/pt/directrizes-autor#etapa-1-propor-uma-nova-lição">Portuguese</a> journals are open year-round.
 </div>
 
 <img src="{{site.baseurl}}/images/author-sm.png" class="garnish rounded float-right" alt="{{ site.data.snippets.write-a-lesson-image-alt[page.lang] }}"/>