diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 12e9ff5..0d5c9e9 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -31,8 +31,11 @@ jobs:
           chmod +x tailwindcss-linux-x64
           mv tailwindcss-linux-x64 /usr/local/bin/tailwindcss
 
+      - run: sudo apt-get install minify
+
       - run: make benchmark
       - run: make
+      - run: make minify
 
       - uses: actions/upload-pages-artifact@v2
         with:
diff --git a/Makefile b/Makefile
index 6cf2221..a6b1a4b 100644
--- a/Makefile
+++ b/Makefile
@@ -24,6 +24,10 @@ Bench.gren: Makefile
 	echo '  _ -> 0' >> Bench.gren
 	echo >> Bench.gren
 
+minify: main.js style.css
+	minify -o main.js main.js
+	minify -o style.css style.css
+
 clean:
 	rm -f main.js style.css Lang.gren langlist Bench.gren helloworld.bench
 
@@ -37,4 +41,4 @@ benchmark/helloworld/%/result:
 	docker build -t helloworld $(dir $@)
 	docker run --rm helloworld cat result > $(dir $@)result
 
-.PHONY: all clean benchmark
+.PHONY: all minify clean benchmark