diff --git a/lisp/progmodes/python.el b/lisp/progmodes/python.el
index ebee703499a..0e0898ffe28 100644
--- a/lisp/progmodes/python.el
+++ b/lisp/progmodes/python.el
@@ -993,7 +993,8 @@ It makes underscores and dots word constituent chars.")
 
 (defvar python--treesit-operators
   '("-" "-=" "!=" "*" "**" "**=" "*=" "/" "//" "//=" "/=" "&" "%" "%="
-    "^" "+" "+=" "<" "<<" "<=" "<>" "=" "==" ">" ">=" ">>" "|" "~" "@" "@="))
+    "^" "+" "->" "+=" "<" "<<" "<=" "<>" "=" ":=" "==" ">" ">=" ">>" "|"
+    "~" "@" "@="))
 
 (defvar python--treesit-special-attributes
   '("__annotations__" "__closure__" "__code__"