Gemfile in sibit-0.20.3 vs Gemfile in sibit-0.20.4

@@ -19,7 +19,7 @@
 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
 source 'https://rubygems.org'
-ruby '~>2.3'
+ruby '~>2.5'
 gemspec