diff --git a/Dockerfile b/Dockerfile
index 4b11d882809ca6eb1d574e20306bb2cd279f5a42..ec246a77566bbbba03b613ce49ec745a82f46f51 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM python:3.8-bullseye
+FROM python:3.12-bookworm
 
 SHELL ["/bin/bash", "-c"]
 
@@ -6,7 +6,7 @@ SHELL ["/bin/bash", "-c"]
 # Base #
 ########
 
-RUN pip install mkdocs>=1.1.2 mkdocs-material==8.5.11 mkdocs-htmlproofer-plugin==1.2.1 mkdocs-video==1.3.0
+RUN pip install mkdocs>=1.6.0 mkdocs-material==9.5.22 mkdocs-htmlproofer-plugin==1.2.1 mkdocs-video==1.5.0
 
 ##########
 # Linter #
@@ -14,7 +14,7 @@ RUN pip install mkdocs>=1.1.2 mkdocs-material==8.5.11 mkdocs-htmlproofer-plugin=
 
 RUN apt-get update && apt-get install -y nodejs npm aspell git git-lfs
 
-RUN npm install -g markdownlint-cli@0.32.2 markdown-link-check
+RUN npm install -g markdownlint-cli@0.40.0 markdown-link-check
 
 ###########################################
 # prepare git for automatic merging in CI #
diff --git a/doc.zih.tu-dresden.de/tud_theme/partials/header.html b/doc.zih.tu-dresden.de/tud_theme/partials/header.html
index 4b28fab9289088db78f1a0ee519a7f5594ad8d38..9fad2d191b113d4367536ec342f6a95d7438b8f6 100644
--- a/doc.zih.tu-dresden.de/tud_theme/partials/header.html
+++ b/doc.zih.tu-dresden.de/tud_theme/partials/header.html
@@ -69,7 +69,7 @@
     </div>
 
     <!-- Button to open search modal -->
-    {% if "search" in config["plugins"] %}
+    {% if "material/search" in config["plugins"] %}
       <label class="md-header__button md-icon" for="__search">
         {% include ".icons/material/magnify.svg" %}
       </label>