diff --git a/smogon.deploy.js b/smogon.deploy.js
index 7fd09621..08860214 100644
--- a/smogon.deploy.js
+++ b/smogon.deploy.js
@@ -147,6 +147,23 @@ for (const f of list("build/item-minisprites-trimmed")) {
     itemspritecopy(f, {dir: "xyitems"});
 }
 
+// Dex spritesheet assets: hash-stamped css + webp, plus the css suffix file
+// shipped to /smog2/dex/spritesheet_css_suffix.txt (read by dex render).
+{
+    const wh = hash("build/smogon/spritesheet.webp");
+    copy("build/smogon/spritesheet.webp", `assets/spritesheet-${wh}.webp`);
+    const src = read("build/smogon/spritesheet.css");
+    const css = src.replaceAll('url("./spritesheet.webp")', `url("./spritesheet-${wh}.webp")`);
+    if (css === src) {
+        throw new Error("spritesheet.css: no webp urls rewritten");
+    }
+    // Suffix from source content: the rewritten css is a pure function of
+    // (css, webp), so this changes exactly when the served bytes change.
+    const ch = hash("build/smogon/spritesheet.css", "build/smogon/spritesheet.webp");
+    write(`assets/spritesheet-${ch}.css`, css);
+    write("spritesheet_css_suffix.txt", `-${ch}\n`);
+}
+
 let h = hash(...list("build/smogon/minisprites"));
 for (const f of list("build/smogon/minisprites")) {
     newspritecopy(f, {dir: "minisprites/" + h});
diff --git a/updateminisprites.sh b/updateminisprites.sh
index 0ea3aff2..b90d66a5 100755
--- a/updateminisprites.sh
+++ b/updateminisprites.sh
@@ -5,19 +5,14 @@ set -ex
 cd ~/smogon/sprites
 pnpm build
 
+rm -rf deploy/smogon
+node tools/deploy/index.ts run smogon.deploy.js -o deploy/smogon
+
 # Update dex
-cd ~/smogon/smogon.com/run
-rm -rf ~/smogon/sprites/build/smogon/spritesheetoutput
-pnpm exec esbuild ~/smogon/sprites/build/smogon/spritesheet.css --asset-names='[name]-[hash]' --entry-names='[name]-[hash]' --loader:.webp=copy --minify --allow-overwrite --bundle --outdir=/home/monsanto/smogon/sprites/build/smogon/spritesheetoutput
-zopfli ~/smogon/sprites/build/smogon/spritesheetoutput/spritesheet-*.css
-brotli -9 ~/smogon/sprites/build/smogon/spritesheetoutput/spritesheet-*.css
-rsync ~/smogon/sprites/build/smogon/spritesheetoutput/* smogon:/smog2/sprites/assets
-python -c 'import re; import pathlib; print(re.match(r"spritesheet(.*)\.css", str(list(pathlib.Path("/home/monsanto/smogon/sprites/build/smogon/spritesheetoutput/.").glob("spritesheet-*.css"))[0].name)).group(1))' | ssh smogon 'cat > /smog2/dex/spritesheet_css_suffix.txt'
+rsync deploy/smogon/assets/* smogon:/smog2/sprites/assets
+ssh smogon 'cat > /smog2/dex/spritesheet_css_suffix.txt' < deploy/smogon/spritesheet_css_suffix.txt
 ssh smogon 'systemctl reload dex'
 
 # Update forum minisprites
-cd /home/monsanto/smogon/sprites
-rm -rf deploy/smogon
-node tools/deploy/index.ts run smogon.deploy.js -o deploy/smogon
 rsync -a deploy/smogon/forumsprites/ smogon:/smog2/forumsprites/minisprites
 rsync -a deploy/smogon/xyicons/ smogon:/smog2/sprites/xyicons