diff --git a/helix-syntax/build.rs b/helix-syntax/build.rs
index a392a033..5d539480 100644
--- a/helix-syntax/build.rs
+++ b/helix-syntax/build.rs
@@ -59,7 +59,7 @@ fn build_cpp(files: Vec<String>, language: &str) {
     let mut build = cc::Build::new();
 
     let flag = if build.get_compiler().is_like_msvc() {
-        "/std:c++14"
+        "/std:c++17"
     } else {
         "-std=c++14"
     };
diff --git a/helix-syntax/languages/tree-sitter-haskell b/helix-syntax/languages/tree-sitter-haskell
index 004f2709..237f4eb4 160000
--- a/helix-syntax/languages/tree-sitter-haskell
+++ b/helix-syntax/languages/tree-sitter-haskell
@@ -1 +1 @@
-Subproject commit 004f2709c460d95fbfd1061f8efc98f36e33c03c
+Subproject commit 237f4eb4417c28f643a29d795ed227246afb66f9