diff --git a/2.12/Dockerfile b/4.1-rc/Dockerfile
similarity index 97%
rename from 2.12/Dockerfile
rename to 4.1-rc/Dockerfile
index 2f0dce6..23832d6 100644
--- a/2.12/Dockerfile
+++ b/4.1-rc/Dockerfile
@@ -14,8 +14,8 @@ ENV QEMU_KEYS \
 
 # https://www.qemu.org/download/#source
 # https://download.qemu.org/?C=M;O=D
-ENV QEMU_VERSION 2.12.1
-ENV QEMU_URL https://download.qemu.org/qemu-2.12.1.tar.xz
+ENV QEMU_VERSION 4.1.0-rc2
+ENV QEMU_URL https://download.qemu.org/qemu-4.1.0-rc2.tar.xz
 
 RUN set -eux; \
 	\
diff --git a/2.12/qemu-signals.patch b/4.1-rc/qemu-signals.patch
similarity index 100%
rename from 2.12/qemu-signals.patch
rename to 4.1-rc/qemu-signals.patch
diff --git a/2.12/start-qemu b/4.1-rc/start-qemu
similarity index 100%
rename from 2.12/start-qemu
rename to 4.1-rc/start-qemu