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-rw-r--r--Dockerfile2
1 files changed, 1 insertions, 1 deletions
diff --git a/Dockerfile b/Dockerfile
index 8f78dc2bfe..6bd5acb335 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM debian
+FROM debian:9
RUN apt-get update && apt-get install --no-install-recommends -y \
avr-libc \