diff --git a/extension.toml b/extension.toml
index 9176247..c3a764e 100644
--- a/extension.toml
+++ b/extension.toml
@@ -12,4 +12,4 @@ language = "ReScript"
 
 [grammars.rescript]
 repository = "https://github.com/rescript-lang/tree-sitter-rescript"
-commit = "64249e68649c77d3c880e335469b464674ad1cbf"
+commit = "5b90cd4e4138b1231a67977303bda47eb608480a"
diff --git a/languages/rescript/highlights.scm b/languages/rescript/highlights.scm
index bc40da1..3bd8620 100644
--- a/languages/rescript/highlights.scm
+++ b/languages/rescript/highlights.scm
@@ -1,4 +1,7 @@
-(comment) @comment
+[
+  (line_comment)
+  (block_comment)
+] @comment
 
 ; Identifiers
 ;------------
@@ -17,6 +20,14 @@
   (list_pattern)
 ] @type
 
+; Dict
+(dict "dict" @type.builtin)
+(dict_pattern "dict" @type.builtin)
+(dict_entry (string) @property)
+(dict_pattern_entry (string) @property)
+(dict_pattern_entry (value_identifier) @variable.parameter)
+(parameter (dict_pattern (dict_pattern_entry (value_identifier) @variable.parameter)))
+
 ((type_identifier) @type.builtin
   (#any-of? @type.builtin
     "int" "char" "string" "float" "bool" "unit"))
@@ -65,6 +76,8 @@
 ] @string
 
 
+(regex) @string.special
+
 (character) @character
 (escape_sequence) @string.escape
 
@@ -215,6 +228,9 @@
   "**"
   "*."
   "/."
+  "<<"
+  ">>"
+  ">>>"
   "<="
   "=="
   "==="
@@ -222,8 +238,12 @@
   "!="
   "!=="
   ">="
+  "&&&"
   "&&"
+  "|||"
   "||"
+  "^^^"
+  "~~~"
   "="
   ":="
   "->"
@@ -235,8 +255,8 @@
 ] @operator
 
 ; Explicitly enclose these operators with binary_expression
-; to avoid confusion with JSX tag delimiters
-(binary_expression ["<" ">" "/"] @operator)
+; to avoid confusion with JSX tag delimiters and extension expressions.
+(binary_expression ["<" ">" "/" "%"] @operator)
 
 [
   "("
diff --git a/languages/rescript/injections.scm b/languages/rescript/injections.scm
index dc8638e..ab74100 100644
--- a/languages/rescript/injections.scm
+++ b/languages/rescript/injections.scm
@@ -1,4 +1,11 @@
-((comment) @injection.content (#set! injection.language "comment"))
+([
+  (line_comment)
+  (block_comment)
+] @injection.content (#set! injection.language "comment"))
+
+; regex literal
+(regex
+  (regex_pattern) @injection.content (#set! injection.language "regex"))
 
 ; %re
 (extension_expression
diff --git a/languages/rescript/textobjects.scm b/languages/rescript/textobjects.scm
index 99b05c4..b6fc85e 100644
--- a/languages/rescript/textobjects.scm
+++ b/languages/rescript/textobjects.scm
@@ -24,7 +24,10 @@
 ; Comments
 ;---------
 
-(comment) @comment.around
+[
+  (line_comment)
+  (block_comment)
+] @comment.around
 
 ; Parameters
 ;-----------