diff --git a/Dockerfile b/Dockerfile
index 8257025..fc3fb56 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,11 +12,9 @@ RUN apt-get update && \
       gettext-base \
       && rm -rf /var/lib/apt/lists/*
 
-# 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_FILENAME} && \
+# 2) Download and install Hydra binary (v2.3.0) using the precise URL
+RUN wget -qO /tmp/hydra.tar.gz \
+      https://github.com/ory/hydra/releases/download/v2.3.0/hydra_2.3.0-linux_64bit.tar.gz && \
     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 && \