2.0-dev: pin to RC2
diff --git a/2.0-dev/Dockerfile b/2.0-dev/Dockerfile
index bb51d5e..1d22720 100644
--- a/2.0-dev/Dockerfile
+++ b/2.0-dev/Dockerfile
@@ -14,7 +14,7 @@
 
 MAINTAINER Clemens Stolle klaemo@apache.org
 
-ENV COUCHDB_VERSION master
+ENV COUCHDB_VERSION 2.0.0-RC2
 
 RUN groupadd -r couchdb && useradd -d /usr/src/couchdb -g couchdb couchdb