diff --git a/.golangci.yml b/.golangci.yml
index 85b57af..4893111 100644
--- a/.golangci.yml
+++ b/.golangci.yml
@@ -94,7 +94,7 @@ run:
 linters-settings:
   gofumpt:
     extra-rules: true
-    lang-version: "1.20"
+    lang-version: "1.21"
   tagliatelle:
     case:
       rules:
diff --git a/.woodpecker/test.yml b/.woodpecker/test.yml
index 01952de..ce06663 100644
--- a/.woodpecker/test.yml
+++ b/.woodpecker/test.yml
@@ -7,16 +7,16 @@ when:
 
 steps:
   deps:
-    image: docker.io/library/golang:1.20
+    image: docker.io/library/golang:1.21
     commands:
       - make deps
 
   lint:
-    image: docker.io/library/golang:1.20
+    image: docker.io/library/golang:1.21
     commands:
       - make lint
 
   test:
-    image: docker.io/library/golang:1.20
+    image: docker.io/library/golang:1.21
     commands:
       - make test
diff --git a/Makefile b/Makefile
index 26fa7f9..f8f92bb 100644
--- a/Makefile
+++ b/Makefile
@@ -19,7 +19,7 @@ GOLANGCI_LINT_PACKAGE ?= github.com/golangci/golangci-lint/cmd/golangci-lint@$(G
 XGO_PACKAGE ?= src.techknowlogick.com/xgo@latest
 
 GENERATE ?=
-XGO_VERSION := go-1.20.x
+XGO_VERSION := go-1.21.x
 XGO_TARGETS ?= linux/amd64,linux/arm64,linux/arm-6,linux/arm-7
 
 TARGETOS ?= linux
diff --git a/go.mod b/go.mod
index 88a9a2b..657fdfb 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/thegeeklab/wp-plugin-go
 
-go 1.20
+go 1.21
 
 require (
 	github.com/Masterminds/sprig/v3 v3.2.3