diff --git a/rps/dockerfile b/rps/dockerfile
index fdc8e4e..28d41e2 100644
--- a/rps/dockerfile
+++ b/rps/dockerfile
@@ -12,12 +12,8 @@ RUN apt update && apt install -y \
     &&                           \
     rm -rf /var/lib/apt/lists/*  \
 
-RUN pip install --upgrade \
-        pip               \
-        poetry            \
-
-RUN poetry update  \
-    &&             \
-    poetry install \
+RUN pip install --upgrade        \
+    pip poetry                   \
+    && poetry install            \
 
 CMD python -m backend