diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5a07007..481994d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## Fixed
+
+- Fix Mathjax equations not displayed properly (#283)
+
 ## [2.1.2] - 2024-05-13
 
 ## Fixed
diff --git a/Dockerfile b/Dockerfile
index 62d45f9..7a84486 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 FROM redis:6.2.4-buster AS redis
 
-FROM python:3.8-slim-buster
+FROM python:3.8-buster
 
 RUN groupadd -r -g 999 redis && useradd -r -g redis -u 999 redis
 COPY --from=redis /usr/local/bin/redis-server /usr/local/bin/redis-server