diff --git a/Doxyfile.procs b/Doxyfile.procs
index 5521e498..e9228ce1 100644
--- a/Doxyfile.procs
+++ b/Doxyfile.procs
@@ -38,7 +38,7 @@ PROJECT_NAME           = "MiniGUI API Reference (MiniGUI-Processes)"
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = v4.0.0
+PROJECT_NUMBER         = v4.0.1
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a
@@ -58,7 +58,7 @@ PROJECT_LOGO           =
 # entered, it will be relative to the location where doxygen was started. If
 # left blank the current directory will be used.
 
-OUTPUT_DIRECTORY       = doc-api-ref-minigui-procs-4.0.0
+OUTPUT_DIRECTORY       = doc-api-ref-minigui-procs-4.0.1
 
 # If the CREATE_SUBDIRS tag is set to YES then doxygen will create 4096 sub-
 # directories (in 2 levels) under the output directory of each output format and
diff --git a/Doxyfile.sal b/Doxyfile.sal
index aac58a75..41889588 100644
--- a/Doxyfile.sal
+++ b/Doxyfile.sal
@@ -38,7 +38,7 @@ PROJECT_NAME           = "MiniGUI API Reference (MiniGUI-Standalone)"
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = v4.0.0
+PROJECT_NUMBER         = v4.0.1
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a
@@ -58,7 +58,7 @@ PROJECT_LOGO           =
 # entered, it will be relative to the location where doxygen was started. If
 # left blank the current directory will be used.
 
-OUTPUT_DIRECTORY       = doc-api-ref-minigui-sa-4.0.0
+OUTPUT_DIRECTORY       = doc-api-ref-minigui-sa-4.0.1
 
 # If the CREATE_SUBDIRS tag is set to YES then doxygen will create 4096 sub-
 # directories (in 2 levels) under the output directory of each output format and
diff --git a/Doxyfile.ths b/Doxyfile.ths
index 180368ff..2bbfdf05 100644
--- a/Doxyfile.ths
+++ b/Doxyfile.ths
@@ -38,7 +38,7 @@ PROJECT_NAME           = "MiniGUI API Reference (MiniGUI-Threads)"
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = v4.0.0
+PROJECT_NUMBER         = v4.0.1
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a
@@ -58,7 +58,7 @@ PROJECT_LOGO           =
 # entered, it will be relative to the location where doxygen was started. If
 # left blank the current directory will be used.
 
-OUTPUT_DIRECTORY       = doc-api-ref-minigui-ths-4.0.0
+OUTPUT_DIRECTORY       = doc-api-ref-minigui-ths-4.0.1
 
 # If the CREATE_SUBDIRS tag is set to YES then doxygen will create 4096 sub-
 # directories (in 2 levels) under the output directory of each output format and