diff --git a/.github/webhook.sh b/.github/webhook.sh
new file mode 100755
index 000000000..6b72816bf
--- /dev/null
+++ b/.github/webhook.sh
@@ -0,0 +1,13 @@
+#!/bin/sh
+set -e
+
+# Report unnamed symbols
+content="$(tools/unnamed.py -r . pokecrystal.sym | grep -v -e '^lib/mobile/' -e '^mobile/' | head)"
+
+curl -H 'Content-Type: application/json' -X POST "$DISCORD_WEBHOOK_URL" -d@- << EOF
+{
+    "username": "OK",
+    "avatar_url": "https://i.imgur.com/38BQHdd.png",
+    "content": "\`\`\`$(echo "$content" | sed -E ':a;N;$!ba;s/\r{0,1}\n/\\n/g')\`\`\`"
+}
+EOF
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
new file mode 100644
index 000000000..3e53a4c28
--- /dev/null
+++ b/.github/workflows/main.yml
@@ -0,0 +1,66 @@
+name: CI
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@master
+
+      - name: Checkout rgbds
+        uses: actions/checkout@master
+        with:
+          path: rgbds
+          ref: v0.5.1
+          repository: gbdev/rgbds
+
+      - name: Install rgbds
+        working-directory: rgbds
+        run: |
+          sudo make install
+
+      - name: Remove rgbds
+        run: |
+          rm -rf rgbds
+
+      - name: Compare
+        run: |
+          make DEBUG=1 -j$(nproc) compare
+          if ! git diff-index --quiet HEAD --; then
+            echo 'Uncommitted changes detected:'
+            git diff-index HEAD --
+            return 1
+          fi
+
+      - name: Discord webhook
+        if: ${{ github.event_name == 'push' && github.repository_owner == 'pret' }}
+        env:
+          DISCORD_WEBHOOK_URL: ${{ secrets.DISCORD_WEBHOOK_URL }}
+        run: |
+          .github/webhook.sh
+
+      - name: Checkout symbols
+        if: ${{ github.event_name == 'push' && github.repository_owner == 'pret' }}
+        uses: actions/checkout@master
+        with:
+          path: symbols
+          ref: symbols
+
+      - name: Move symbols
+        if: ${{ github.event_name == 'push' && github.repository_owner == 'pret' }}
+        run: |
+          cp -v *.sym symbols/
+
+      - name: Update symbols
+        if: ${{ github.event_name == 'push' && github.repository_owner == 'pret' }}
+        uses: EndBug/add-and-commit@v7
+        with:
+          branch: symbols
+          cwd: "./symbols"
+          add: "*.sym"
+          message: ${{ github.event.commits[0].message }}
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index f7def85aa..000000000
--- a/.travis.yml
+++ /dev/null
@@ -1,35 +0,0 @@
-language: c
-os:
-  - linux
-  - osx
-install:
-  - |-
-    ( cd
-        if [ "$TRAVIS_OS_NAME" = osx ]; then
-          HOMEBREW_NO_AUTO_UPDATE=1 brew install bison
-          export PATH="/usr/local/opt/bison/bin:$PATH"
-        fi
-        git clone -b v0.5.1 --depth=1 https://github.com/gbdev/rgbds
-        sudo make -C rgbds install
-        rm -rf rgbds
-    )
-before_script:
-  - |-
-    function check_status() {
-      if ! git diff-index --quiet --ignore-submodules=all HEAD --; then
-        echo 'Uncommitted changes detected:';
-        git diff-index HEAD --;
-        return 1;
-      fi;
-    }
-script:
-  - make DEBUG=1 -j2 compare
-  - check_status
-after_success:
-  - |-
-    if [ "$TRAVIS_BRANCH" = master -a "$TRAVIS_PULL_REQUEST" = false -a "$TRAVIS_OS_NAME" = linux ]; then
-      ./.travis/webhook.sh
-      if [ -n "$GITHUB_API_KEY" ]; then
-        ./.travis/upload_symbols.sh
-      fi
-    fi
diff --git a/.travis/upload_symbols.sh b/.travis/upload_symbols.sh
deleted file mode 100755
index c4e03e8e1..000000000
--- a/.travis/upload_symbols.sh
+++ /dev/null
@@ -1,12 +0,0 @@
-#!/bin/sh
-set -e
-
-commit_message=$(git log -1 --pretty=%B)
-
-git clone -b symbols https://github.com/pret/pokecrystal symbols
-cd symbols
-
-cp ../*.sym .
-git add *.sym
-git -c user.name='travis' -c user.email='travis@travis-ci.org' commit -m "$commit_message"
-git push -f -q https://pokepret:$GITHUB_API_KEY@github.com/pret/pokecrystal symbols &>/dev/null
diff --git a/.travis/webhook.sh b/.travis/webhook.sh
deleted file mode 100755
index 3fe33bff0..000000000
--- a/.travis/webhook.sh
+++ /dev/null
@@ -1,15 +0,0 @@
-#!/bin/sh
-set -e
-
-root="$(readlink -e "$(dirname "$0")/..")"
-
-# Report unnamed symbols
-content="$("$root/tools/unnamed.py" -r "$root" "$root/pokecrystal.sym" | grep -v -e '^lib/mobile/' -e '^mobile/' | head)"
-
-curl -H 'Content-Type: application/json' -X POST "$POKECRYSTAL_DISCORD_WEBHOOK_URL" -d@- << EOF
-{
-    "username": "$POKECRYSTAL_DISCORD_WEBHOOK_USERNAME",
-    "avatar_url": "$POKECRYSTAL_DISCORD_WEBHOOK_AVATAR_URL",
-    "content": "\`\`\`$(echo "$content" | sed -E ':a;N;$!ba;s/\r{0,1}\n/\\n/g')\`\`\`"
-}
-EOF
diff --git a/README.md b/README.md
index 60fab7240..1479286d3 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# Pokémon Crystal [![Build Status][travis-badge]][travis]
+# Pokémon Crystal [![Build Status][ci-badge]][ci]
 
 This is a disassembly of Pokémon Crystal.
 
@@ -45,5 +45,5 @@ Other disassembly projects:
 [tutorials]: https://github.com/pret/pokecrystal/wiki/Tutorials
 [discord]: https://discord.gg/d5dubZ3
 [irc]: https://kiwiirc.com/client/irc.freenode.net/?#pret
-[travis]: https://travis-ci.org/pret/pokecrystal
-[travis-badge]: https://travis-ci.org/pret/pokecrystal.svg?branch=master
+[ci]: https://github.com/pret/pokecrystal/actions
+[ci-badge]: https://github.com/pret/pokecrystal/actions/workflows/main.yml/badge.svg