diff --git a/Dockerfile b/Dockerfile
index 7de50df..683f397 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -24,9 +24,9 @@ RUN apt-get update -y && \
     rm -rf /var/lib/apt/lists
 
 RUN if [ "${TARGETARCH}" = "arm64" ]; then \
-        wget -q -O /tmp/oscar.deb https://www.apneaboard.com/OSCAR/oscar_1.5.1-RasPiOS-11_arm64.deb; \
+        wget -q -O /tmp/oscar.deb https://www.apneaboard.com/OSCAR/oscar_1.5.3-RasPiOS-12_arm64.deb; \
     else \
-        wget -q -O /tmp/oscar.deb https://www.apneaboard.com/OSCAR/oscar_1.5.1-RasPiOS-11_armhf.deb; \
+        wget -q -O /tmp/oscar.deb https://www.apneaboard.com/OSCAR/oscar_1.5.3-RasPiOS-12_armhf.deb; \
     fi
 
 RUN apt-get update -y && \