diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
index fdfc055..fed7216 100644
--- a/.github/workflows/go.yml
+++ b/.github/workflows/go.yml
@@ -19,7 +19,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v2
       with:
-        go-version: 1.15
+        go-version: 1.18
 
     - name: Test
       run: |
diff --git a/v5/go.mod b/v5/go.mod
index c731d4c..64b64d7 100644
--- a/v5/go.mod
+++ b/v5/go.mod
@@ -1,6 +1,6 @@
 module github.com/evanphx/json-patch/v5
 
-go 1.12
+go 1.18
 
 require (
 	github.com/jessevdk/go-flags v1.4.0