diff --git a/.drone.yml b/.drone.yml
deleted file mode 100644
index 7b74f75e3a..0000000000
--- a/.drone.yml
+++ /dev/null
@@ -1,5 +0,0 @@
-pipeline:
-  build:
-    image: scalacenter/scala-rvm-jvm-coursier:2.0
-    commands:
-      - ./scripts/ci.sh
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 0000000000..775eb48eb0
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,32 @@
+name: Build
+on: [push, pull_request]
+jobs:
+  build:
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: 2.5.8
+          bundler-cache: true
+      - name: Set up coursier
+        uses: laughedelic/coursier-setup@v1
+        with:
+          jvm: adopt:11
+      - name: Run mdoc
+        run: |
+          ./scripts/run-mdoc.sh
+          rm -r /tmp/mdoc-out/
+      - name: Jekyll build
+        run: bundle exec jekyll build
+      - name: HTMLProofer
+        run: |
+          # # Checking for docs.scala-lang/blob/master leads to a chicken and egg problem because of the edit links of new pages.
+          bundle exec htmlproofer ./_site/\
+             --only-4xx\
+             --http-status-ignore "400,401,429"\
+             --empty-alt-ignore\
+             --allow-hash-href\
+             --url-ignore '/https://github.com/scala/docs.scala-lang/blob/master/.*/,/www.oracle.com/'
+
diff --git a/scripts/ci.sh b/scripts/ci.sh
deleted file mode 100755
index 5a04734f27..0000000000
--- a/scripts/ci.sh
+++ /dev/null
@@ -1,21 +0,0 @@
-#!/bin/bash
-
-. /usr/local/rvm/scripts/rvm
-
-set -eux
-
-bundle install
-./scripts/run-mdoc.sh
-rm -r /tmp/mdoc-out/
-bundle exec jekyll build
-
-# Checking for docs.scala-lang/blob/master leads to a chicken and egg problem because of the edit links of new pages.
-# The docs at http://dotty.epfl.ch/api/scala/tasty/ are temporarily not available.
-bundle exec htmlproofer ./_site/\
-  --only-4xx\
-  --http-status-ignore "400,401,429"\
-  --empty-alt-ignore\
-  --allow-hash-href\
-  --url-ignore '/https://github.com/scala/docs.scala-lang/blob/master/.*/,/www.oracle.com/'
-
-exit 0
diff --git a/scripts/run-mdoc.sh b/scripts/run-mdoc.sh
index e795f9b4aa..97593abd20 100755
--- a/scripts/run-mdoc.sh
+++ b/scripts/run-mdoc.sh
@@ -1,10 +1,10 @@
 #!/bin/bash
 set -eux
 
-coursier launch org.scalameta:mdoc_2.12:2.2.13 -- \
+cs launch org.scalameta:mdoc_2.12:2.2.13 -- \
   --in . \
   --out /tmp/mdoc-out/ \
-  --classpath $(coursier fetch -p com.chuusai:shapeless_2.12:2.3.3) \
+  --classpath $(cs fetch -p com.chuusai:shapeless_2.12:2.3.3) \
   --scalac-options "-Xfatal-warnings -feature" \
   --no-link-hygiene \
   --include '**.md'