diff --git a/Dockerfile b/Dockerfile
index 1a67a9b..8257025 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,10 +12,11 @@ RUN apt-get update && \
       gettext-base \
       && rm -rf /var/lib/apt/lists/*
 
-# 2) Download and install Hydra binary (v1.16.4 as example)
-RUN HYDRA_VERSION=v1.16.4 && \
+# 2) Download and install Hydra binary (v2.3.0) with the correct filename
+RUN HYDRA_VERSION=v2.3.0 && \
+    HYDRA_FILENAME="hydra_${HYDRA_VERSION}-linux_64bit.tar.gz" && \
     wget -qO /tmp/hydra.tar.gz \
-      https://github.com/ory/hydra/releases/download/${HYDRA_VERSION}/hydra_${HYDRA_VERSION}_linux_amd64.tar.gz && \
+      https://github.com/ory/hydra/releases/download/${HYDRA_VERSION}/${HYDRA_FILENAME} && \
     mkdir -p /usr/local/bin/hydra_tmp && \
     tar -xzf /tmp/hydra.tar.gz -C /usr/local/bin/hydra_tmp && \
     mv /usr/local/bin/hydra_tmp/hydra /usr/local/bin/hydra && \
@@ -44,7 +45,7 @@ COPY templates/ /templates/
 RUN mkdir -p /var/www/lam/config
 RUN chown -R www-data:www-data /var/www/lam
 
-# 8) Expose ports
+# 8) Expose ports: LDAP=389, LDAPS=636, Hydra Public=4444, Hydra Admin=4445, HTTP=80
 EXPOSE 389 636 4444 4445 80
 
 # 9) At runtime, entrypoint.sh does all the envsubst + slapd reconfiguration + supervisord