diff --git a/_bibliography/papers.bib b/_bibliography/papers.bib
index e9f611e..857d8b0 100644
--- a/_bibliography/papers.bib
+++ b/_bibliography/papers.bib
@@ -26,7 +26,9 @@ @article{Gao2024CoCA
   title   = {CoCA: Regaining Safety-awareness of Multimodal Large Language Models with Constitutional Calibration},
   author  = {Jiahui Gao and Renjie Pi and Tianyang Han and Han Wu and Lanqing HONG and Lingpeng Kong and Xin Jiang and Zhenguo Li},
   journal = {Conference on Language Modeling (COLM)},
-  year    = {2024}
+  year    = {2024},
+  pdf     = {https://openreview.net/pdf/e390bb1d8e4556b9ff8aa1d181879bc225c7c365.pdf},
+  preview = {Gao2024CoCA.png}
 }
 
 
diff --git a/_config.yml b/_config.yml
index 2bbe1ff..788415b 100644
--- a/_config.yml
+++ b/_config.yml
@@ -73,7 +73,7 @@ dblp_url: # your DBLP profile url
 stackoverflow_id: #your stackoverflow id
 
 contact_note: >
-  You can even add a little note about which of these is the best way to reach you.
+  Github
 
 # -----------------------------------------------------------------------------
 # Analytics and search engine verification
diff --git a/_news/announcement_1.md b/_news/announcement_1.md
index bf575c4..3d047e8 100644
--- a/_news/announcement_1.md
+++ b/_news/announcement_1.md
@@ -1,6 +1,6 @@
 ---
 layout: post
-date: 2022-08-31 15:59:00-0400
+date: 2024-08-31 15:59:00-0400
 inline: true
 ---
 
diff --git a/_news/announcement_2.md b/_news/announcement_2.md
deleted file mode 100644
index ac64af8..0000000
--- a/_news/announcement_2.md
+++ /dev/null
@@ -1,7 +0,0 @@
----
-layout: post
-date: 2023-08-31 15:59:00-0400
-inline: true
----
-
-Welcome the arrival of new students.
\ No newline at end of file
diff --git a/assets/img/publication_preview/Gao2024CoCA.png b/assets/img/publication_preview/Gao2024CoCA.png
new file mode 100644
index 0000000..4fb0c0e
Binary files /dev/null and b/assets/img/publication_preview/Gao2024CoCA.png differ