diff --git a/Dockerfile b/Dockerfile
index 5549b70..667eb8f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -5,9 +5,9 @@ FROM pentacent/keila:0.14 as keila-build
 
 FROM cloudron/base:4.2.0
 
-# Install runtime dependencies
+# Install runtime dependencies including Erlang
 RUN apt-get update \
-    && apt-get install -y postgresql-client \
+    && apt-get install -y postgresql-client erlang-base erlang-crypto erlang-ssl erlang-inets \
     && rm -rf /var/lib/apt/lists/*
 
 # Create directories