diff --git a/changelog.d/20241024_193059_ghassan.maslamani_sumac.md b/changelog.d/20241024_193059_ghassan.maslamani_sumac.md
new file mode 100644
index 0000000..e5bebd3
--- /dev/null
+++ b/changelog.d/20241024_193059_ghassan.maslamani_sumac.md
@@ -0,0 +1 @@
+- 💥[Feature] Upgrade to Sumac (by @ghassanmas)
\ No newline at end of file
diff --git a/setup.py b/setup.py
index cdcf128..1e6024a 100644
--- a/setup.py
+++ b/setup.py
@@ -43,8 +43,8 @@ def load_about():
     packages=find_packages(exclude=["tests*"]),
     include_package_data=True,
     python_requires=">=3.8",
-    install_requires=["tutor>=18.0.0,<19.0.0"],
-    extras_require={"dev": "tutor[dev]>=18.0.0,<19.0.0"},
+    install_requires=["tutor>=19.0.0,<20.0.0"],
+    extras_require={"dev": "tutor[dev]>=19.0.0,<20.0.0"},
     entry_points={
         "tutor.plugin.v1": [
             "forum = tutorforum.plugin"
diff --git a/tutorforum/__about__.py b/tutorforum/__about__.py
index 7201340..0122a6f 100644
--- a/tutorforum/__about__.py
+++ b/tutorforum/__about__.py
@@ -1 +1 @@
-__version__ = "18.1.1"
+__version__ = "19.0.0"
diff --git a/tutorforum/templates/forum/build/forum/Dockerfile b/tutorforum/templates/forum/build/forum/Dockerfile
index f4d0189..e9fcabc 100644
--- a/tutorforum/templates/forum/build/forum/Dockerfile
+++ b/tutorforum/templates/forum/build/forum/Dockerfile
@@ -1,7 +1,7 @@
 # syntax=docker/dockerfile:1
 ########## Base image
 # https://hub.docker.com/_/ruby/tags
-FROM docker.io/ruby:3.3.1-slim-bullseye as base
+FROM docker.io/ruby:3.3.5-slim-bookworm AS base
 
 ENV DEBIAN_FRONTEND=noninteractive
 RUN apt update && \
@@ -14,7 +14,7 @@ RUN useradd --home-dir /app --create-home --shell /bin/bash --uid 1000 app
 USER app
 
 # Install rake and bundler
-ENV PATH=/app/.gem/ruby/3.3.1/bin:$PATH
+ENV PATH=/app/.gem/ruby/3.3.5/bin:$PATH
 RUN gem install --user-install bundler --version 2.3.26
 RUN gem install --user-install rake --version 13.1.0