diff --git a/README.md b/README.md
index 9529dbbd42f..89d73c6f194 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@
 
 Verovio is a fast, portable and lightweight library for engraving [Music Encoding Initiative (MEI)](http://www.music-encoding.org) digital scores into SVG images. Verovio also contains on-the-fly converters to render [Plaine & Easie Code](https://www.iaml.info/plaine-easie-code), [Humdrum](https://www.humdrum.org), [Musedata](https://musedata.org), [MusicXML](https://www.musicxml.com), [EsAC](http://esac-data.org), and [ABC](https://en.wikipedia.org/wiki/ABC_notation) digital scores. 
 
-Verovio is written in standard 2023 C++ and can be compiled as a standalone command-line tool, used as a compiled music-rendering library for applications (Qt, python), or compiled into Javascript using the Emscripten LLVM-to-JavaScript compiler.  Check out the JavaScript toolkit version of verovio running in the [MEI Viewer](http://www.verovio.org/mei-viewer.xhtml) as well as the [app](http://www.verovio.org/app.html) or [tutorials](https://book.verovio.org/first-steps/) for web integration and user interaction.
+Verovio is written in standard 2020 C++ and can be compiled as a standalone command-line tool, used as a compiled music-rendering library for applications (Qt, python), or compiled into Javascript using the Emscripten LLVM-to-JavaScript compiler.  Check out the JavaScript toolkit version of verovio running in the [MEI Viewer](http://www.verovio.org/mei-viewer.xhtml) as well as the [app](http://www.verovio.org/app.html) or [tutorials](https://book.verovio.org/first-steps/) for web integration and user interaction.
 
 ![Choice interaction](https://raw.githubusercontent.com/rism-digital/verovio.org/gh-pages/movies/reflow.gif)
 
diff --git a/cmake/CMakeLists.txt b/cmake/CMakeLists.txt
index 97a0f0017f6..fea1101476d 100644
--- a/cmake/CMakeLists.txt
+++ b/cmake/CMakeLists.txt
@@ -48,7 +48,7 @@ if(MSVC)
     add_definitions(/wd4244)          # suppress warning of possible loss of precision
     add_definitions(-DNO_PAE_SUPPORT) # regex is working differently under Windows so PAE is not supported (yet)
     add_definitions(-DUSE_PAE_OLD_PARSER)
-    add_definitions(/std:c++2b)
+    add_definitions(/std:c++20)
     include_directories(../include/win32)
 else()
     if(CMAKE_BUILD_TYPE MATCHES Debug)
@@ -64,7 +64,7 @@ else()
     # jsonxx raises -Wdollar-in-identifier-extension
     # gcc 8.3.1 does not like -Wdollar-in-identifier-extension option.
     add_definitions(-Wall -W -pedantic -Wno-unused-parameter -Wno-dollar-in-identifier-extension)
-    add_definitions(-std=c++2b)
+    add_definitions(-std=c++20)
 
     # extra warnings similar to Xcode compiling settings (most probably covered by -Wall):
     # https://github.com/llvm-mirror/clang/blob/master/include/clang/Basic/DiagnosticGroups.td
diff --git a/src/view_page.cpp b/src/view_page.cpp
index da7b982aa0f..fb54010c0ee 100644
--- a/src/view_page.cpp
+++ b/src/view_page.cpp
@@ -11,7 +11,7 @@
 
 #include <cassert>
 #include <math.h>
-#include <ranges>
+#include <sstream>
 
 //----------------------------------------------------------------------------