diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3c5970cd..61c5d4bc 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -66,7 +66,7 @@ endfunction()
 
 find_package(Threads MODULE REQUIRED)
 
-find_package(pegtl 3.1.0 QUIET CONFIG)
+find_package(pegtl 3.2.0 QUIET CONFIG)
 if(NOT pegtl_FOUND)
   # If a compatible version of PEGTL is not already installed, build and install it from the submodule directory.
   set(PEGTL_BUILD_TESTS OFF CACHE BOOL "Disable PEGTL tests")
diff --git a/PEGTL b/PEGTL
index c3e1ab52..7d039707 160000
--- a/PEGTL
+++ b/PEGTL
@@ -1 +1 @@
-Subproject commit c3e1ab5295a30c15da04b2e289fcfea82d37bce8
+Subproject commit 7d039707cf835cea63daa78a717e18fcc5bcf95b
diff --git a/README.md b/README.md
index 05582c38..7482599c 100644
--- a/README.md
+++ b/README.md
@@ -67,9 +67,9 @@ means you need to include an acknowledgement along with the license text.
 
 ### graphqlpeg
 
-- GraphQL parsing: [Parsing Expression Grammar Template Library (PEGTL)](https://github.com/taocpp/PEGTL) release 3.1.1,
+- GraphQL parsing: [Parsing Expression Grammar Template Library (PEGTL)](https://github.com/taocpp/PEGTL) release 3.2.0,
 which is part of [The Art of C++](https://taocpp.github.io/) library collection. I've added this as a sub-module, so you
-do not need to install this separately. If you already have 3.1.1 installed where CMake can find it, it will use that
+do not need to install this separately. If you already have 3.2.0 installed where CMake can find it, it will use that
 instead of the sub-module and avoid installing another copy of PEGTL.
 
 ### graphqlservice
diff --git a/include/graphqlservice/GraphQLTree.h b/include/graphqlservice/GraphQLTree.h
index 73d8e2e7..d2607f37 100644
--- a/include/graphqlservice/GraphQLTree.h
+++ b/include/graphqlservice/GraphQLTree.h
@@ -13,19 +13,6 @@
 #include <tao/pegtl.hpp>
 #include <tao/pegtl/contrib/parse_tree.hpp>
 
-// Temporarily workaround the tao::demangle namespace in 3.1.0. This was fixed in PEGTL commit
-// https://github.com/taocpp/PEGTL/commit/0cc3128e07734fb72e23e2eeee70b9f1fc13ca5f, which put this
-// in the correct namespace defined by TAO_PEGTL_NAMESPACE (tao::graphqlpeg) and should be included
-// in 3.1.1 or later. Once that version of PEGTL is released, this can be removed.
-#include <tao/pegtl/version.hpp>
-
-#if (TAO_PEGTL_VERSION_MAJOR == 3) && (TAO_PEGTL_VERSION_MINOR == 1)                               \
-	&& (TAO_PEGTL_VERSION_PATCH < 1)
-namespace tao::graphqlpeg {
-using ::tao::demangle;
-}
-#endif
-
 #include <string>
 #include <string_view>
 #include <variant>