diff --git a/bin/compile b/bin/compile
index e516df6..86a222b 100755
--- a/bin/compile
+++ b/bin/compile
@@ -57,33 +57,77 @@ fi
 mkdir -p "$APT_CACHE_DIR/archives/partial"
 mkdir -p "$APT_STATE_DIR/lists/partial"
 
-PACKAGES="
-  gconf-service
-  libappindicator1
-  libasound2
-  libatk1.0-0
-  libatk-bridge2.0-0
-  libcairo-gobject2
-  libdrm2
-  libgbm1
-  libgconf-2-4
-  libgtk-3-0
-  libnspr4
-  libnss3
-  libx11-xcb1
-  libxcb-dri3-0
-  libxcomposite1
-  libxcursor1
-  libxdamage1
-  libxfixes3
-  libxi6
-  libxinerama1
-  libxrandr2
-  libxshmfence1
-  libxss1
-  libxtst6
-  fonts-liberation
-"
+case "${STACK}" in
+  "heroku-20" | "heroku-22")
+    PACKAGES="
+      fonts-liberation
+      libasound2
+      libatk-bridge2.0-0
+      libatk1.0-0
+      libatspi2.0-0
+      libcups2
+      libdbus-1-3
+      libdrm2
+      libgbm1
+      libgcc1
+      libglib2.0-0
+      libgtk-3-0
+      libnspr4
+      libnss3
+      libpango-1.0-0
+      libpangocairo-1.0-0
+      libuuid1
+      libx11-xcb1
+      libxcb-dri3-0
+      libxcomposite1
+      libxcursor1
+      libxdamage1
+      libxfixes3
+      libxi6
+      libxkbcommon0
+      libxrandr2
+      libxshmfence1
+      libxss1
+      libxtst6
+    "
+    ;;
+  "heroku-24")
+    PACKAGES="
+      fonts-liberation
+      libasound2t64
+      libatk-bridge2.0-0
+      libatk1.0-0
+      libatspi2.0-0
+      libcups2
+      libdbus-1-3
+      libdrm2
+      libgbm1
+      libgcc1
+      libglib2.0-0
+      libgtk-3-0
+      libnspr4
+      libnss3
+      libpango-1.0-0
+      libpangocairo-1.0-0
+      libuuid1
+      libx11-xcb1
+      libxcb-dri3-0
+      libxcomposite1
+      libxcursor1
+      libxdamage1
+      libxfixes3
+      libxi6
+      libxkbcommon0
+      libxrandr2
+      libxshmfence1
+      libxss1
+      libxtst6
+    "
+    ;;
+  *)
+    error "STACK must be 'heroku-20', 'heroku-22' or 'heroku-24', not '${STACK}'."
+esac
+
 APT_OPTIONS="-o debug::nolocking=true -o dir::cache=$APT_CACHE_DIR -o dir::state=$APT_STATE_DIR"
 APT_FLAGS="--allow-downgrades --allow-remove-essential --allow-change-held-packages"