diff --git a/.ruby-gemset b/.ruby-gemset
new file mode 100644
index 000000000..9af05b2e3
--- /dev/null
+++ b/.ruby-gemset
@@ -0,0 +1 @@
+cryptopus
diff --git a/.ruby-version b/.ruby-version
new file mode 100644
index 000000000..1b33ec974
--- /dev/null
+++ b/.ruby-version
@@ -0,0 +1 @@
+ruby-1.9.3-p547
diff --git a/.rvmrc b/.rvmrc
deleted file mode 100644
index d141979c5..000000000
--- a/.rvmrc
+++ /dev/null
@@ -1 +0,0 @@
-rvm use ruby-1.9.3@cryptopus