diff --git a/NEWS b/NEWS
index 42fdadaaf..105f3375c 100644
--- a/NEWS
+++ b/NEWS
@@ -30,7 +30,7 @@ ver 0.21 (not yet released)
   - sndio: new mixer plugin
 * encoder
   - opus: support for sending metadata using ogg stream chaining
-* require GCC 5.0
+* require GCC 6
 
 ver 0.20.21 (not yet released)
 * database
diff --git a/doc/developer.xml b/doc/developer.xml
index 0f2fbc219..c2a4c164e 100644
--- a/doc/developer.xml
+++ b/doc/developer.xml
@@ -47,7 +47,7 @@
       <listitem>
         <para>
           the code should be C++14 compliant, and must compile with
-          <application>GCC</application> 5.0 and
+          <application>GCC</application> 6.0 and
           <application>clang</application> 3.4
         </para>
       </listitem>
diff --git a/doc/user.xml b/doc/user.xml
index 1d472bc86..46ed4f274 100644
--- a/doc/user.xml
+++ b/doc/user.xml
@@ -91,7 +91,7 @@ cd mpd-version</programlisting>
         <listitem>
           <para>
             a C++14 compiler (e.g. <ulink
-            url="http://gcc.gnu.org/">gcc 5.0</ulink> or <ulink
+            url="http://gcc.gnu.org/">gcc 6.0</ulink> or <ulink
             url="http://clang.llvm.org/">clang 3.9</ulink>)
           </para>
         </listitem>
diff --git a/src/Compiler.h b/src/Compiler.h
index 02b76bf71..d2ca0b8f3 100644
--- a/src/Compiler.h
+++ b/src/Compiler.h
@@ -62,8 +62,8 @@
 #    error Sorry, your clang version is too old.  You need at least version 3.1.
 #  endif
 #elif defined(__GNUC__)
-#  if GCC_OLDER_THAN(5,0)
-#    error Sorry, your gcc version is too old.  You need at least version 5.0.
+#  if GCC_OLDER_THAN(6,0)
+#    error Sorry, your gcc version is too old.  You need at least version 6.0.
 #  endif
 #else
 #  warning Untested compiler.  Use at your own risk!