diff --git a/backend/src/langs.ts b/backend/src/langs.ts
index fb807d9..935cd51 100644
--- a/backend/src/langs.ts
+++ b/backend/src/langs.ts
@@ -1145,6 +1145,16 @@ pikachu pi pi pi pikachu pipi pi pi pikachu pichu pichu pi pi pi pi pi
 pi pi pi pi pi pi pi pi pi pi pikachu pipi pikachu pi pi pi pikachu ka
 ka ka ka ka ka pikachu ka ka ka ka ka ka ka ka pikachu pipi pi pikachu
 pipi pikachu
+`,
+  },
+  postgresql: {
+    aliases: ["psql", "postgres", "pgsql", "postgre"],
+    name: "PostgreSQL",
+    monacoLang: "pgsql",
+    repl: `rm -rf data && /usr/lib/postgresql/*/bin/initdb -D data && (echo "listen_addresses = ''" && echo "unix_socket_directories = '.'") >> data/postgresql.conf && /usr/lib/postgresql/*/bin/pg_ctl -D data -w start && psql -h "$PWD/data" postgres`,
+    main: "main.sql",
+    run: `rm -rf data && /usr/lib/postgresql/*/bin/initdb -D data && (echo "listen_addresses = ''" && echo "unix_socket_directories = '.'") >> data/postgresql.conf && /usr/lib/postgresql/*/bin/pg_ctl -D data -w start && (psql -h "$PWD/data" postgres -f main.sql; psql -h "$PWD/data" postgres)`,
+    template: `SELECT 'Hello, world!';
 `,
   },
   powershell: {
diff --git a/scripts/docker-install-phase3c.bash b/scripts/docker-install-phase3c.bash
index 59a5dfd..63b0347 100755
--- a/scripts/docker-install-phase3c.bash
+++ b/scripts/docker-install-phase3c.bash
@@ -40,6 +40,10 @@ perlconsole
 # PHP
 php
 
+# PostgreSQL
+postgresql
+postgresql-client
+
 # Prolog
 swi-prolog