diff --git a/.gitignore b/.gitignore
index 9eb9d4b..f5f0461 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,5 @@
+.rebar
+
 rebar
 
 ebin
diff --git a/rebar.config b/rebar.config
index 7d2070a..c2b21b4 100644
--- a/rebar.config
+++ b/rebar.config
@@ -1,4 +1,4 @@
-{require_otp_vsn, "R14|R15|R16"}.
+{require_min_otp_vsn, "R14"}.
 {port_env, [
   {"CFLAGS", "$CFLAGS -DSQLITE_THREADSAFE=1 -DSQLITE_USE_URI -DSQLITE_ENABLE_FTS3 -DSQLITE_ENABLE_FTS3_PARENTHESIS"}]}.
 {port_specs, [