diff --git a/Dockerfile b/Dockerfile
index a3f86f4..304ae9e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -38,7 +38,7 @@ ENV DATABASE_LIBRARY_VERSION 1.2.4
 ENV DATADRIVER_VERSION 1.6.0
 ENV DATETIMETZ_VERSION 1.0.6
 ENV FAKER_VERSION 5.0.0
-ENV FIREFOX_VERSION 98.0
+ENV FIREFOX_VERSION 100.0
 ENV FTP_LIBRARY_VERSION 1.9
 ENV GECKO_DRIVER_VERSION v0.30.0
 ENV IMAP_LIBRARY_VERSION 0.4.2
diff --git a/README.md b/README.md
index a08ef84..44a655f 100644
--- a/README.md
+++ b/README.md
@@ -28,7 +28,7 @@ The versions used are:
 * [Robot Framework SeleniumLibrary](https://github.com/robotframework/SeleniumLibrary) 6.0.0
 * [Robot Framework SSHLibrary](https://github.com/robotframework/SSHLibrary) 3.8.0
 * [Axe Selenium Library](https://github.com/mozilla-services/axe-selenium-python) 2.1.6
-* Firefox 91.7
+* Firefox 100.0
 * Chromium 99.0
 * [Amazon AWS CLI](https://pypi.org/project/awscli/) 1.22.87