diff --git a/.gitignore b/.gitignore
index 1d8ffcc..7fb7145 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,2 @@
 images/**/*.png
-**/*.mp4
\ No newline at end of file
+**/*.webm
\ No newline at end of file
diff --git a/Dockerfile b/Dockerfile
index 06d70ab..d579f03 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,7 +3,7 @@ FROM node:18-alpine
 # Set TZ to Singapore to help with syncronizing with singapore's website time
 ENV TZ="Asia/Singapore"
 
-RUN apk update && apk add --no-cache ffmpeg npm pango-dev g++ make jpeg-dev giflib-dev librsvg-dev
+RUN apk update && apk add --no-cache ffmpeg npm pango-dev g++ make jpeg-dev giflib-dev librsvg-dev ttf-dejavu
 
 RUN mkdir -p /home/node/app/node_modules
 RUN mkdir -p /home/node/app/images/raw
diff --git a/out/output.webm b/out/output.webm
deleted file mode 100644
index 701f4ff..0000000
Binary files a/out/output.webm and /dev/null differ
diff --git a/video.mjs b/video.mjs
index 094e091..d9e8373 100644
--- a/video.mjs
+++ b/video.mjs
@@ -12,7 +12,7 @@ async function overlayImage(time_string) {
     ctx.drawImage(overlay, 0, 0, 853, 479)
 
     let text = time_string.substring(8, 10) + ':' + time_string.substring(10, 12);
-    ctx.font = 'bold 70px';
+    ctx.font = 'bold 70px sans-serif';
     ctx.fillStyle = 'rgba(0,0,0,0.7)';
     ctx.fillText(text, 853 - 250, 479 - 40);