diff --git a/CHANGELOG.md b/CHANGELOG.md
index a25e4b254d..4265be1a70 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -16,6 +16,8 @@
 
 - Prevent inlining of async functions in additional cases https://github.com/rescript-lang/rescript-compiler/issues/5860
 - Revert to ubuntu-18.04 in CI to support Linux versions with older glibc https://github.com/rescript-lang/rescript-compiler/issues/5868
+- Fix build error where aliasing arguments to `_` in the make function with JSX V4. https://github.com/rescript-lang/syntax/pull/720
+- Fix parsing of spread props as an expression in JSX V4 https://github.com/rescript-lang/syntax/pull/721
 
 # 10.1.0
 
diff --git a/jscomp/napkin/CHANGELOG.md b/jscomp/napkin/CHANGELOG.md
index e12a288505..66abd7ebe2 100644
--- a/jscomp/napkin/CHANGELOG.md
+++ b/jscomp/napkin/CHANGELOG.md
@@ -51,6 +51,8 @@
 - Fix issue where the JSX fragment without children build error https://github.com/rescript-lang/syntax/pull/704
 - Fix issue where async as an id cannot be used with application and labelled arguments https://github.com/rescript-lang/syntax/issues/707
 - Treat await as almost-unary operator weaker than pipe so `await foo->bar` means `await (foo->bar)` https://github.com/rescript-lang/syntax/pull/711
+- Fix build error where aliasing arguments to `_` in the make function with JSX V4. https://github.com/rescript-lang/syntax/pull/720
+- Fix parsing of spread props as an expression in JSX V4 https://github.com/rescript-lang/syntax/pull/721
 
 #### :eyeglasses: Spec Compliance
 
diff --git a/lib/4.06.1/unstable/js_compiler.ml b/lib/4.06.1/unstable/js_compiler.ml
index 5a0a5f5c34..54cfafa6c2 100644
--- a/lib/4.06.1/unstable/js_compiler.ml
+++ b/lib/4.06.1/unstable/js_compiler.ml
@@ -275780,10 +275780,7 @@ let transformStructureItem ~config mapper item =
             | Pexp_fun
                 ( _arg_label,
                   _default,
-                  {
-                    ppat_desc =
-                      Ppat_construct ({txt = Lident "()"}, _) | Ppat_any;
-                  },
+                  {ppat_desc = Ppat_construct ({txt = Lident "()"}, _)},
                   expr ) ->
               (patternsWithLabel, patternsWithNolabel, expr)
             | Pexp_fun
diff --git a/lib/4.06.1/unstable/js_playground_compiler.ml b/lib/4.06.1/unstable/js_playground_compiler.ml
index 956cbf991d..bceba48f7f 100644
--- a/lib/4.06.1/unstable/js_playground_compiler.ml
+++ b/lib/4.06.1/unstable/js_playground_compiler.ml
@@ -275780,10 +275780,7 @@ let transformStructureItem ~config mapper item =
             | Pexp_fun
                 ( _arg_label,
                   _default,
-                  {
-                    ppat_desc =
-                      Ppat_construct ({txt = Lident "()"}, _) | Ppat_any;
-                  },
+                  {ppat_desc = Ppat_construct ({txt = Lident "()"}, _)},
                   expr ) ->
               (patternsWithLabel, patternsWithNolabel, expr)
             | Pexp_fun
@@ -285935,7 +285932,7 @@ and parseJsxProp p =
         (Location.mkloc "ns.namedArgLoc" loc, Parsetree.PStr [])
       in
       let attrExpr =
-        let e = parsePrimaryExpr ~operand:(parseAtomicExpr p) p in
+        let e = parsePrimaryExpr ~operand:(parseExpr p) p in
         {e with pexp_attributes = propLocAttr :: e.pexp_attributes}
       in
       (* using label "spreadProps" to distinguish from others *)
diff --git a/lib/4.06.1/whole_compiler.ml b/lib/4.06.1/whole_compiler.ml
index c68f33d3b9..c05257f7f3 100644
--- a/lib/4.06.1/whole_compiler.ml
+++ b/lib/4.06.1/whole_compiler.ml
@@ -286164,10 +286164,7 @@ let transformStructureItem ~config mapper item =
             | Pexp_fun
                 ( _arg_label,
                   _default,
-                  {
-                    ppat_desc =
-                      Ppat_construct ({txt = Lident "()"}, _) | Ppat_any;
-                  },
+                  {ppat_desc = Ppat_construct ({txt = Lident "()"}, _)},
                   expr ) ->
               (patternsWithLabel, patternsWithNolabel, expr)
             | Pexp_fun
@@ -299467,7 +299464,7 @@ and parseJsxProp p =
         (Location.mkloc "ns.namedArgLoc" loc, Parsetree.PStr [])
       in
       let attrExpr =
-        let e = parsePrimaryExpr ~operand:(parseAtomicExpr p) p in
+        let e = parsePrimaryExpr ~operand:(parseExpr p) p in
         {e with pexp_attributes = propLocAttr :: e.pexp_attributes}
       in
       (* using label "spreadProps" to distinguish from others *)
diff --git a/syntax b/syntax
index c4544b4d91..51e4e16668 160000
--- a/syntax
+++ b/syntax
@@ -1 +1 @@
-Subproject commit c4544b4d91b3692c2ddd96fe68225714c1d90608
+Subproject commit 51e4e16668a6ada802ea4d9d2a0e1aa966fdeee2