diff --git a/adapters.go b/adapters.go
index 59b4dc3..48253f0 100644
--- a/adapters.go
+++ b/adapters.go
@@ -38,19 +38,6 @@ var (
 
 		// Numbers
 		NewAdapter(big.NewRat(1, 2), nil, nil),
-		NewAdapter(
-			float32(3.14),
-			func(s string) (interface{}, error) {
-				v, err := strconv.ParseFloat(s, 32)
-				if err != nil {
-					return nil, err
-				}
-				return float32(v), nil
-			},
-			func(v interface{}) (string, error) {
-				return fmt.Sprintf("%f", v), nil
-			},
-		),
 		NewAdapter(
 			int(32),
 			func(s string) (interface{}, error) {
diff --git a/codec_test.go b/codec_test.go
index cbbc099..e22ef26 100644
--- a/codec_test.go
+++ b/codec_test.go
@@ -140,7 +140,6 @@ func newTestMap() map[string]interface{} {
 		"vstring|foo": "Hello3",
 		// Numbers
 		"vint":     32,
-		"vfloat32": float32(3.14159),
 		"vfloat64": float64(3.14159),
 		"vrat":     big.NewRat(1, 2),
 		// Time