diff --git a/doc/hal/Doxyfile_chm b/doc/hal/Doxyfile_chm
index f3db17881..4d3e63f59 100644
--- a/doc/hal/Doxyfile_chm
+++ b/doc/hal/Doxyfile_chm
@@ -38,7 +38,7 @@ PROJECT_NAME           = ChibiOS/HAL
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 4.0.0
+PROJECT_NUMBER         = 4.0.1
 
 # 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
diff --git a/doc/hal/Doxyfile_html b/doc/hal/Doxyfile_html
index 9fe01d526..8ee87715f 100644
--- a/doc/hal/Doxyfile_html
+++ b/doc/hal/Doxyfile_html
@@ -38,7 +38,7 @@ PROJECT_NAME           = ChibiOS/HAL
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 4.0.0
+PROJECT_NUMBER         = 4.0.1
 
 # 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
diff --git a/doc/nil/Doxyfile_chm b/doc/nil/Doxyfile_chm
index 031e5f867..689a28708 100644
--- a/doc/nil/Doxyfile_chm
+++ b/doc/nil/Doxyfile_chm
@@ -38,7 +38,7 @@ PROJECT_NAME           = ChibiOS/NIL
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 1.1.0
+PROJECT_NUMBER         = 1.1.1
 
 # 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
diff --git a/doc/nil/Doxyfile_html b/doc/nil/Doxyfile_html
index a19efd4d3..9997cf384 100644
--- a/doc/nil/Doxyfile_html
+++ b/doc/nil/Doxyfile_html
@@ -38,7 +38,7 @@ PROJECT_NAME           = ChibiOS/NIL
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 1.1.0
+PROJECT_NUMBER         = 1.1.1
 
 # 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
diff --git a/os/hal/include/hal.h b/os/hal/include/hal.h
index 546012d5a..5baf2e9bc 100644
--- a/os/hal/include/hal.h
+++ b/os/hal/include/hal.h
@@ -103,7 +103,7 @@
 /**
  * @brief   HAL version string.
  */
-#define HAL_VERSION             "4.0.0"
+#define HAL_VERSION             "4.0.1"
 
 /**
  * @brief   HAL version major number.
@@ -118,7 +118,7 @@
 /**
  * @brief   HAL version patch number.
  */
-#define CH_HAL_PATCH            0
+#define CH_HAL_PATCH            1
 /** @} */
 
 /**