diff --git a/CMakeLists.txt b/CMakeLists.txt
index fc25eb9..a18ddf3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 3.20)
 include(cmake/color.cmake)
-set(BLT_VERSION 0.18.36)
+set(BLT_VERSION 0.18.37)
 set(BLT_TEST_VERSION 0.0.1)
 
 set(BLT_TARGET BLT)
diff --git a/include/blt/std/mmap.h b/include/blt/std/mmap.h
index a8cc4a6..22b70c3 100644
--- a/include/blt/std/mmap.h
+++ b/include/blt/std/mmap.h
@@ -39,9 +39,10 @@ namespace blt
     */
     void handle_mmap_error(blt::logging::logger func);
     
-    inline static constexpr blt::size_t align_to_size(blt::size_t in, blt::size_t align)
+    inline static constexpr blt::size_t align_size_to(blt::size_t size, blt::size_t align)
     {
-        return 0;
+        const blt::size_t MASK = ~(align - 1);
+        return (size & MASK) + align;
     }
     
     void* allocate_2mb_huge_pages(blt::size_t bytes);
diff --git a/libraries/parallel-hashmap b/libraries/parallel-hashmap
index 8a889d3..d88c5e1 160000
--- a/libraries/parallel-hashmap
+++ b/libraries/parallel-hashmap
@@ -1 +1 @@
-Subproject commit 8a889d3699b3c09ade435641fb034427f3fd12b6
+Subproject commit d88c5e15079047777b418132ece5879e7c9aaa2b