diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 67ec15f8..02dd0e61 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -21,7 +21,7 @@ jobs:
   test:
     strategy:
       matrix:
-        go-version: [1.14.x, 1.18.x, 1.19.x]
+        go-version: [1.18.x, 1.19.x, 1.20.x, 1.21.x]
         os: [ubuntu-latest]
     runs-on: ${{ matrix.os }}
     timeout-minutes: 10
diff --git a/.github/workflows/validate.yml b/.github/workflows/validate.yml
index 4e9fe058..3eff0426 100644
--- a/.github/workflows/validate.yml
+++ b/.github/workflows/validate.yml
@@ -21,7 +21,7 @@ jobs:
   linters:
     strategy:
       matrix:
-        go-version: [1.19.x]
+        go-version: [1.21.x]
         os: [ubuntu-latest]
     runs-on: ${{ matrix.os }}
     timeout-minutes: 10
@@ -35,5 +35,5 @@ jobs:
       - name: lint
         uses: golangci/golangci-lint-action@v3
         with:
-          version: v1.50
+          version: v1.55.1
           args: --print-resources-usage --timeout=10m --verbose
diff --git a/Makefile b/Makefile
index 6f247ec0..dfcee7d2 100644
--- a/Makefile
+++ b/Makefile
@@ -55,8 +55,8 @@ ci: prepare
 	if [ `arch` == 'x86_64' ]; then \
 		sudo apt-get -y -q update; \
 		sudo apt-get -y -q install build-essential; \
-		wget -q https://github.com/tinygo-org/tinygo/releases/download/v0.26.0/tinygo_0.26.0_amd64.deb; \
-		sudo dpkg -i tinygo_0.26.0_amd64.deb; \
+		wget -q https://github.com/tinygo-org/tinygo/releases/download/v0.30.0/tinygo_0.30.0_amd64.deb; \
+		sudo dpkg -i tinygo_0.30.0_amd64.deb; \
 		export PATH=$$PATH:/usr/local/tinygo/bin; \
 	fi
 	go test -v ./... ./_generated
diff --git a/go.mod b/go.mod
index 84ec98e5..a4a43b16 100644
--- a/go.mod
+++ b/go.mod
@@ -1,8 +1,13 @@
 module github.com/tinylib/msgp
 
-go 1.15
+go 1.18
 
 require (
 	github.com/philhofer/fwd v1.1.2
-	golang.org/x/tools v0.4.0
+	golang.org/x/tools v0.14.0
+)
+
+require (
+	golang.org/x/mod v0.13.0 // indirect
+	golang.org/x/sys v0.13.0 // indirect
 )
diff --git a/go.sum b/go.sum
index 60bca288..1cff9254 100644
--- a/go.sum
+++ b/go.sum
@@ -1,36 +1,8 @@
 github.com/philhofer/fwd v1.1.2 h1:bnDivRJ1EWPjUIRXV5KfORO897HTbpFAQddBdE8t7Gw=
 github.com/philhofer/fwd v1.1.2/go.mod h1:qkPdfjR2SIEbspLqpe1tO4n5yICnr2DY7mqEx2tUTP0=
-github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
-golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
-golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
-golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
-golang.org/x/mod v0.7.0 h1:LapD9S96VoQRhi/GrNTqeBJFrUjs5UHCAtTlgwA5oZA=
-golang.org/x/mod v0.7.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
-golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
-golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
-golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
-golang.org/x/net v0.3.0/go.mod h1:MBQ8lrhLObU/6UmLb4fmbmk5OcyYmqtbGd/9yIeKjEE=
-golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.1.0 h1:wsuoTGHzEhffawBOhz5CYhcrV4IdKZbEyZjBMuTp12o=
-golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.3.0 h1:w8ZOecv6NaNa/zC8944JTU3vz4u6Lagfk4RPQxv92NQ=
-golang.org/x/sys v0.3.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
-golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
-golang.org/x/term v0.3.0/go.mod h1:q750SLmJuPmVoN1blW3UFBPREJfb1KmY3vwxfr+nFDA=
-golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
-golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
-golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
-golang.org/x/text v0.5.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
-golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
-golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
-golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
-golang.org/x/tools v0.4.0 h1:7mTAgkunk3fr4GAloyyCasadO6h9zSsQZbwvcaIciV4=
-golang.org/x/tools v0.4.0/go.mod h1:UE5sM2OK9E/d67R0ANs2xJizIymRP5gJU295PvKXxjQ=
-golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/mod v0.13.0 h1:I/DsJXRlw/8l/0c24sM9yb0T4z9liZTduXvdAWYiysY=
+golang.org/x/mod v0.13.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
+golang.org/x/sys v0.13.0 h1:Af8nKPmuFypiUBjVoU9V20FiaFXOcuZI21p0ycVYYGE=
+golang.org/x/sys v0.13.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/tools v0.14.0 h1:jvNa2pY0M4r62jkRQ6RwEZZyPcymeL9XZMLBbV7U2nc=
+golang.org/x/tools v0.14.0/go.mod h1:uYBEerGOWcJyEORxN+Ek8+TT266gXkNlHdJBwexUsBg=
diff --git a/msgp/advise_other.go b/msgp/advise_other.go
index 1b6ed572..07f524af 100644
--- a/msgp/advise_other.go
+++ b/msgp/advise_other.go
@@ -1,5 +1,5 @@
-//go:build (!linux && !tinygo) || appengine
-// +build !linux,!tinygo appengine
+//go:build (!linux && !tinygo && !windows) || appengine
+// +build !linux,!tinygo,!windows appengine
 
 package msgp
 
diff --git a/tinygotest/tinygo_test.go b/tinygotest/tinygo_test.go
index dd4d96bd..2659abed 100644
--- a/tinygotest/tinygo_test.go
+++ b/tinygotest/tinygo_test.go
@@ -1,5 +1,4 @@
-//go:build (amd64 && go1.18) || (darwin && go1.18)
-// +build amd64,go1.18 darwin,go1.18
+//go:build amd64 || darwin
 
 package tinygotest
 
@@ -12,6 +11,7 @@ import (
 	"os"
 	"os/exec"
 	"path/filepath"
+	"runtime"
 	"strings"
 	"testing"
 )
@@ -148,6 +148,9 @@ var buildOnlyTargets = []string{
 
 func run(t *testing.T, dir, exe string, args ...string) {
 	t.Helper()
+	if runtime.GOOS == "windows" {
+		exe += ".exe"
+	}
 	cmd := exec.Command("./" + exe)
 	wd, err := os.Getwd()
 	if err != nil {
@@ -202,12 +205,19 @@ func tinygoBuild(t *testing.T, dir string, targets ...string) {
 		if tgt == "wasm" {
 			ext = ".wasm"
 		}
+		dst := tgt + ext
+		if tgt == "" {
+			dst = "nativebin"
+			if runtime.GOOS == "windows" {
+				dst += ".exe"
+			}
+		}
 
 		var args []string
 		if tgt == "" { // empty target means the native platform
-			args = []string{"build", "-o=nativebin", "."}
+			args = []string{"build", "-o=" + dst, "."}
 		} else {
-			args = []string{"build", "-target=" + tgt, "-o=" + tgt + ext, "."}
+			args = []string{"build", "-target=" + tgt, "-o=" + dst, "."}
 		}
 
 		t.Logf("%s: tinygo %v", dir, args)
@@ -218,6 +228,10 @@ func tinygoBuild(t *testing.T, dir string, targets ...string) {
 			t.Logf("%s: tinygo build %v; output: %s", dir, args, b)
 		}
 		if err != nil {
+			// See https://github.com/tinygo-org/tinygo/issues/3977
+			if strings.Contains(string(b), "could not find wasm-opt") {
+				t.Skipf("skipping wasm test because wasm-opt is not installed")
+			}
 			t.Fatal(err)
 		}
 	}