diff --git a/firefox/Dockerfile b/firefox/Dockerfile
index 01ab69573c4..6a438cbef03 100644
--- a/firefox/Dockerfile
+++ b/firefox/Dockerfile
@@ -30,7 +30,7 @@ ENV PATH /opt/firefox:$PATH
 # https://archive.mozilla.org/pub/firefox/releases/
 # https://download-installer.cdn.mozilla.net/pub/firefox/releases/
 # https://www.mozilla.org/en-US/firefox/all/#product-desktop-release
-ENV FIREFOX_VERSION 128.0.2
+ENV FIREFOX_VERSION 128.0.3
 
 RUN set -eux; \
 	savedAptMark="$(apt-mark showmanual)"; \
diff --git a/firefox/versions.json b/firefox/versions.json
index 842c5123042..ee313dac0ec 100644
--- a/firefox/versions.json
+++ b/firefox/versions.json
@@ -1,3 +1,3 @@
 {
-  "version": "128.0.2"
+  "version": "128.0.3"
 }