diff --git a/embed/build.sh b/embed/build.sh
index 36183bb..0e82195 100755
--- a/embed/build.sh
+++ b/embed/build.sh
@@ -12,13 +12,13 @@ WASI_SDK="$ROOT/tools/wasi-sdk-22.0/bin"
 	-o sqlite3.wasm "$ROOT/sqlite3/main.c" \
 	-I"$ROOT/sqlite3" \
 	-mexec-model=reactor \
-	-msimd128 -mmutable-globals \
+	-matomics -msimd128 -mmutable-globals \
 	-mbulk-memory -mreference-types \
 	-mnontrapping-fptoint -msign-ext \
 	-fno-stack-protector -fno-stack-clash-protection \
-	-Wl,--initial-memory=327680 \
 	-Wl,--stack-first \
 	-Wl,--import-undefined \
+	-Wl,--initial-memory=327680 \
 	-D_HAVE_SQLITE_CONFIG_H \
 	-DSQLITE_CUSTOM_INCLUDE=sqlite_opt.h \
 	$(awk '{print "-Wl,--export="$0}' exports.txt)
diff --git a/embed/sqlite3.wasm b/embed/sqlite3.wasm
index 569f0b3..bb4f7ea 100755
Binary files a/embed/sqlite3.wasm and b/embed/sqlite3.wasm differ
diff --git a/sqlite.go b/sqlite.go
index 61a0365..e698fc8 100644
--- a/sqlite.go
+++ b/sqlite.go
@@ -13,6 +13,7 @@ import (
 	"github.com/ncruces/go-sqlite3/vfs"
 	"github.com/tetratelabs/wazero"
 	"github.com/tetratelabs/wazero/api"
+	"github.com/tetratelabs/wazero/experimental"
 )
 
 // Configure SQLite Wasm.
@@ -44,12 +45,14 @@ var instance struct {
 }
 
 func compileSQLite() {
-	if RuntimeConfig == nil {
-		RuntimeConfig = wazero.NewRuntimeConfig()
+	ctx := context.Background()
+	cfg := RuntimeConfig
+	if cfg == nil {
+		cfg = wazero.NewRuntimeConfig()
 	}
 
-	ctx := context.Background()
-	instance.runtime = wazero.NewRuntimeWithConfig(ctx, RuntimeConfig)
+	instance.runtime = wazero.NewRuntimeWithConfig(ctx,
+		cfg.WithCoreFeatures(api.CoreFeaturesV2|experimental.CoreFeaturesThreads))
 
 	env := instance.runtime.NewHostModuleBuilder("env")
 	env = vfs.ExportHostFunctions(env)
diff --git a/vfs/tests/mptest/mptest_test.go b/vfs/tests/mptest/mptest_test.go
index a65cb45..a47133e 100644
--- a/vfs/tests/mptest/mptest_test.go
+++ b/vfs/tests/mptest/mptest_test.go
@@ -23,6 +23,7 @@ import (
 	"github.com/ncruces/go-sqlite3/vfs/memdb"
 	"github.com/tetratelabs/wazero"
 	"github.com/tetratelabs/wazero/api"
+	"github.com/tetratelabs/wazero/experimental"
 	"github.com/tetratelabs/wazero/imports/wasi_snapshot_preview1"
 )
 
@@ -40,7 +41,9 @@ var (
 
 func TestMain(m *testing.M) {
 	ctx := context.Background()
-	cfg := wazero.NewRuntimeConfig().WithMemoryLimitPages(1024)
+	cfg := wazero.NewRuntimeConfig().
+		WithCoreFeatures(api.CoreFeaturesV2 | experimental.CoreFeaturesThreads).
+		WithMemoryLimitPages(1024)
 	rt = wazero.NewRuntimeWithConfig(ctx, cfg)
 	wasi_snapshot_preview1.MustInstantiate(ctx, rt)
 
diff --git a/vfs/tests/mptest/testdata/build.sh b/vfs/tests/mptest/testdata/build.sh
index bd2e4ba..67d6b91 100755
--- a/vfs/tests/mptest/testdata/build.sh
+++ b/vfs/tests/mptest/testdata/build.sh
@@ -10,7 +10,7 @@ WASI_SDK="$ROOT/tools/wasi-sdk-22.0/bin"
 "$WASI_SDK/clang" --target=wasm32-wasi -std=c23 -flto -g0 -O2 \
 	-o mptest.wasm main.c \
 	-I"$ROOT/sqlite3" \
-	-msimd128 -mmutable-globals \
+	-matomics -msimd128 -mmutable-globals \
 	-mbulk-memory -mreference-types \
 	-mnontrapping-fptoint -msign-ext \
 	-fno-stack-protector -fno-stack-clash-protection \
diff --git a/vfs/tests/mptest/testdata/mptest.wasm.bz2 b/vfs/tests/mptest/testdata/mptest.wasm.bz2
index a19b679..d6922d3 100644
--- a/vfs/tests/mptest/testdata/mptest.wasm.bz2
+++ b/vfs/tests/mptest/testdata/mptest.wasm.bz2
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:92c82e38e6b6d97086ef84f5cee6442ebf36ffa15629c76c31edca0592ac11fc
-size 479929
+oid sha256:05dc5c2008972a605af3adec692827658255514fda73cc608856e27b4fd0e3e1
+size 479728
diff --git a/vfs/tests/speedtest1/speedtest1_test.go b/vfs/tests/speedtest1/speedtest1_test.go
index b647fc9..4aa0fd3 100644
--- a/vfs/tests/speedtest1/speedtest1_test.go
+++ b/vfs/tests/speedtest1/speedtest1_test.go
@@ -17,6 +17,8 @@ import (
 	_ "embed"
 
 	"github.com/tetratelabs/wazero"
+	"github.com/tetratelabs/wazero/api"
+	"github.com/tetratelabs/wazero/experimental"
 	"github.com/tetratelabs/wazero/imports/wasi_snapshot_preview1"
 
 	"github.com/ncruces/go-sqlite3/internal/util"
@@ -39,7 +41,9 @@ func TestMain(m *testing.M) {
 	initFlags()
 
 	ctx := context.Background()
-	rt = wazero.NewRuntime(ctx)
+	cfg := wazero.NewRuntimeConfig().
+		WithCoreFeatures(api.CoreFeaturesV2 | experimental.CoreFeaturesThreads)
+	rt = wazero.NewRuntimeWithConfig(ctx, cfg)
 	wasi_snapshot_preview1.MustInstantiate(ctx, rt)
 	env := vfs.ExportHostFunctions(rt.NewHostModuleBuilder("env"))
 	_, err := env.Instantiate(ctx)
diff --git a/vfs/tests/speedtest1/testdata/build.sh b/vfs/tests/speedtest1/testdata/build.sh
index 0700b8c..adbc4fb 100755
--- a/vfs/tests/speedtest1/testdata/build.sh
+++ b/vfs/tests/speedtest1/testdata/build.sh
@@ -10,7 +10,7 @@ WASI_SDK="$ROOT/tools/wasi-sdk-22.0/bin"
 "$WASI_SDK/clang" --target=wasm32-wasi -std=c23 -flto -g0 -O2 \
 	-o speedtest1.wasm main.c \
 	-I"$ROOT/sqlite3" \
-	-msimd128 -mmutable-globals \
+	-matomics -msimd128 -mmutable-globals \
 	-mbulk-memory -mreference-types \
 	-mnontrapping-fptoint -msign-ext \
 	-fno-stack-protector -fno-stack-clash-protection \
diff --git a/vfs/tests/speedtest1/testdata/speedtest1.wasm.bz2 b/vfs/tests/speedtest1/testdata/speedtest1.wasm.bz2
index 7b4b1cf..0fa7ab6 100644
--- a/vfs/tests/speedtest1/testdata/speedtest1.wasm.bz2
+++ b/vfs/tests/speedtest1/testdata/speedtest1.wasm.bz2
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:fc6236a295ad2b24ec21c13cbd5047817ac4c97722de6fe8b7b16d1760e398e4
-size 491989
+oid sha256:ef42f76fb3c0cf742aa3500454c7d1b2d7e13526f4c39f217c983e574683d757
+size 491674