diff --git a/syntaxes/wat.json b/syntaxes/wat.json
index f116cd3..0ea147a 100644
--- a/syntaxes/wat.json
+++ b/syntaxes/wat.json
@@ -792,22 +792,7 @@
             {
               "comment": "Floating point literal",
               "name": "constant.numeric.float.wat",
-              "match": "[+-]?\\b[0-9][0-9]*(?:\\.[0-9][0-9]*)?(?:[eE][+-]?[0-9]+)?\\b"
-            },
-            {
-              "comment": "Floating point hexadecimal literal",
-              "name": "constant.numeric.float.wat",
-              "match": "[+-]?\\b0x([0-9a-fA-F]*\\.[0-9a-fA-F]+|[0-9a-fA-F]+\\.?)[Pp][+-]?[0-9]+\\b"
-            },
-            {
-              "comment": "Floating point infinity",
-              "name": "constant.numeric.float.wat",
-              "match": "[+-]?\\binf\\b"
-            },
-            {
-              "comment": "Floating point literal (NaN)",
-              "name": "constant.numeric.float.wat",
-              "match": "[+-]?\\bnan:0x[0-9a-fA-F][0-9a-fA-F]*\\b"
+              "match": "[+-]?(?:0x[\\dA-Fa-f](?:_?[\\dA-Fa-f])*(?:\\.[\\dA-Fa-f](?:_?[\\dA-Fa-f])*|\\.?)(?:[Pp][+-]?[\\dA-Fa-f](?:_?[\\dA-Fa-f])*)?|\\d(?:_?\\d)*(?:\\.\\d(?:_?\\d)*|\\.?)(?:[Ee][+-]?\\d(?:_?\\d)*)?|inf|nan(?::0x[\\dA-Fa-f](?:_?[\\dA-Fa-f])*)?)"
             },
             {
               "comment": "Integer literal",