SAN FRANCISCO (AP) — Heliot Ramos hit his second big league home run, and the San Francisco Giants beat the Colorado Rockies 4-1 on Sunday for their first series sweep this season.

Jordan Hicks (4-1) overcame a decrease in his velocity, allowing one run and three hits over five innings with no walks as the Giants stretched their winning streak to a season-high four.

Hicks’ sinker averaged 91.4 mph, down from 95.3 mph this season coming in.

“Overall, I feel like I got stronger as we went,” Hicks said. “But just a little before the game, had my normal meal and water, and just kind of threw it up and then didn’t really have time to get it back in me. So I was just snacking throughout the innings. Overall, I felt pretty good, strong as the game progressed.”

Sean Hjelle, Luke Jackson, Taylor Rogers and Camilo Doval each pitched a hitless inning to complete a three-hitter. Doval struck out Jake Cave for the final out and remained perfect in eight save chances.