diff --git a/CHANGELOG.md b/CHANGELOG.md
index 87749a69..bd9ec4e8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -18,6 +18,7 @@
   * debounce MUC sidebar rendering in ConverseJS (Fix #138)
   * force history pruning, even if messages keep coming (Fix #140)
   * don't load all vCards when right menu is not visible (Fix #106)
+  * Changing the default avatar to minimize blinking effect when a user sends his first message
 * Prosody: disabling message carbons for anonymous users (See #295)
 * Peertube users avatars optimization (Fix #303):
   * avoid multiple parallel request to load same avatar from Peertube
diff --git a/conversejs/build-conversejs.sh b/conversejs/build-conversejs.sh
index f372bb66..0f028841 100644
--- a/conversejs/build-conversejs.sh
+++ b/conversejs/build-conversejs.sh
@@ -18,7 +18,8 @@ CONVERSE_COMMIT=""
 # - Fix: MUC occupant list does not sort itself on nicknames or roles changes
 # This version already includes following changes that will not be merged in ConverseJS upstream:
 # - Don't load vCards for all room occupants when the right menu is closed
-CONVERSE_COMMIT="00ee4fc70d56af1f4d2387ef67576264ae79d497"
+# - Changing the default avatar, for something very light (to mitigate blinking effect when vCards are loaded)
+CONVERSE_COMMIT="9fff09f75a3f65a970506c3fd1796feaba552845"
 CONVERSE_REPO="https://github.com/JohnXLivingston/converse.js"
 
 rootdir="$(pwd)"