diff --git a/Dockerfile b/Dockerfile
index 80a7541..fd58868 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -6,9 +6,10 @@ RUN apt-get install -y wget curl make git bzip2 time libzip-dev libssl1.0.0 open
 RUN apt-get install -y patch unzip libsqlite3-dev gawk freetds-dev sbcl
 
 ADD ./ /opt/src/pgloader
+WORKDIR /opt/src/pgloader
 
-# we have build in the .dockerignore file, but we actually need it now
-RUN mkdir -p /opt/src/pgloader/build/bin
-RUN make PWD=/opt/src/pgloader -C /opt/src/pgloader
+# build/ is in the .dockerignore file, but we actually need it now
+RUN mkdir -p build/bin
+RUN make
 
 RUN cp /opt/src/pgloader/build/bin/pgloader /usr/local/bin
diff --git a/Makefile b/Makefile
index d2c831a..d2eb57c 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 # pgloader build tool
 APP_NAME   = pgloader
-VERSION    = 3.2.1.preview
+VERSION    = 3.3.0.50 # development version for 3.3.0
 
 # use either sbcl or ccl
 CL	   = sbcl
diff --git a/src/params.lisp b/src/params.lisp
index efcd491..caaae99 100644
--- a/src/params.lisp
+++ b/src/params.lisp
@@ -31,8 +31,8 @@
 (defparameter *release* nil
   "non-nil when this build is a release build.")
 
-(defparameter *major-version* "3.2")
-(defparameter *minor-version* "1")
+(defparameter *major-version* "3.3")
+(defparameter *minor-version* "0.50")
 
 (defun git-hash ()
   "Return the current abbreviated git hash of the development tree."