diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index b94c6c33d..5e15a2ef0 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -7,7 +7,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        go: ['1.18.x', '1.19.x', '1.20.x', '1.21.x', '1.22.x']
+        go: ['1.19.x', '1.20.x', '1.21.x', '1.22.x']
     name: Test with Go ${{ matrix.go }} on ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
     env:
diff --git a/go.mod b/go.mod
index 1303909b7..05ec89b12 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/hajimehoshi/ebiten/v2
 
-go 1.18
+go 1.19
 
 require (
 	github.com/ebitengine/gomobile v0.0.0-20240429094902-cf88669c3591