diff --git a/backend/src/langs.ts b/backend/src/langs.ts
index 454b16d..b5a68ec 100644
--- a/backend/src/langs.ts
+++ b/backend/src/langs.ts
@@ -61,6 +61,14 @@ end Main;
     main: "main.alg",
     run: "a68g main.alg",
     template: `print(("Hello, world!",new line))
+`,
+  },
+  apl: {
+    name: "APL",
+    repl: "apl",
+    main: "main.apl",
+    run: "apl -f main.apl",
+    template: `'Hello, world!'
 `,
   },
   arm: {
diff --git a/scripts/docker-install-phase3a.bash b/scripts/docker-install-phase3a.bash
index c64d750..07a9dfe 100755
--- a/scripts/docker-install-phase3a.bash
+++ b/scripts/docker-install-phase3a.bash
@@ -12,6 +12,9 @@ gnat
 # Algol
 algol68g
 
+# APL
+libtinfo5
+
 # ARM
 gcc-arm-linux-gnueabihf
 qemu-user-static
diff --git a/scripts/docker-install-phase5.bash b/scripts/docker-install-phase5.bash
index 482817d..0c03f2d 100755
--- a/scripts/docker-install-phase5.bash
+++ b/scripts/docker-install-phase5.bash
@@ -31,6 +31,11 @@ mv linux/ada_language_server /usr/bin/ada_language_server
 mv linux/*.so* /usr/lib/x86_64-linux-gnu/
 rm -rf linux linux-latest.tar.gz
 
+# APL
+wget -nv ftp://ftp.gnu.org/gnu/apl/apl_1.8-1_amd64.deb
+dpkg -i apl_*_amd64.deb
+rm apl_*_amd64.deb
+
 # Clojure
 wget -nv https://github.com/snoe/clojure-lsp/releases/download/release-20200629T153107/clojure-lsp
 chmod +x clojure-lsp