diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2b3f292..898e03a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -30,7 +30,7 @@ find_library(LIBUBSAN NAMES ubsan libubsan.so.0)
 #
 ## Set various debug flags (instrumentation libs, coverage, …)
 #
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++1y -pedantic -Wall -Wextra -Wconversion -fvisibility=hidden -fvisibility-inlines-hidden")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++1z -pedantic -Wall -Wextra -Wconversion -fvisibility=hidden -fvisibility-inlines-hidden")
 if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
   set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -fprofile-arcs -ftest-coverage --coverage")
 endif()
diff --git a/INSTALL.rst b/INSTALL.rst
index 45a860d..1411e33 100644
--- a/INSTALL.rst
+++ b/INSTALL.rst
@@ -16,7 +16,7 @@ Build and runtime dependencies:
 Tools:
 ~~~~~~
 
-- A C++14 compiler (clang >= 3.4 or gcc >= 5.0 for example)
+- A C++17 compiler (clang >= 4.0 or gcc >= 7.0 for example)
 - CMake
 - pandoc (optional) to build the man page
 
diff --git a/README.rst b/README.rst
index 8a03701..6522efa 100644
--- a/README.rst
+++ b/README.rst
@@ -14,7 +14,7 @@ Biboumi is an XMPP gateway that connects to IRC servers and translates
 between the two protocols. It can be used to access IRC channels using any
 XMPP client as if these channels were XMPP MUCs.
 
-It is written in modern C++14 and makes great efforts to have as little
+It is written in modern C++17 and makes great efforts to have as little
 dependencies and to be as simple as possible.
 
 The goal is to provide a way to access most of IRC features using any XMPP