diff --git a/Dockerfile b/Dockerfile
index d9b3477..2e7361b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 FROM larsks/esp-open-sdk
 RUN yum install -y libffi-devel
-RUN git clone --depth 1 -b v1.18 https://github.com/micropython/micropython.git /src	
+RUN git clone --depth 1 -b v1.19 https://github.com/micropython/micropython.git /src	
 WORKDIR /src/mpy-cross
 RUN make
 WORKDIR /src/ports/esp8266