diff --git a/README.txt b/README.txt
index 3ee73ee..4606ff6 100644
--- a/README.txt
+++ b/README.txt
@@ -22,6 +22,7 @@ More infos can be found in the attached user's guide (PDF).
 ***********************
 Version history
 
+v. 2.3.3:  fixed typo in keywords.txt
 v. 2.3.2:  eliminated usage of NULL to fix gcc compiler warnings
 v. 2.3.1:  added compatibility with Arduino IDE >= 1.6.7
 v. 2.3.0:  fixed a critical bug that lead to infinite execution of task 0 (also if ONETIME)
diff --git a/leOS2.h b/leOS2.h
index dd30462..f39ec28 100644
--- a/leOS2.h
+++ b/leOS2.h
@@ -37,7 +37,7 @@
 
 
 //library version
-#define leOS2_VERSION 232
+#define leOS2_VERSION 233
 
 
 //this library is compatible both with Arduino <=0023 and Arduino >=100
diff --git a/library.properties b/library.properties
index ffa7e21..d5f8cb1 100644
--- a/library.properties
+++ b/library.properties
@@ -1,5 +1,5 @@
 name=leOS2
-version=2.3.2
+version=2.3.3
 author=Leonardo Miliani
 maintainer=Leonardo Miliani
 sentence=Simple scheduler based on watchdog that runs little tasks within IRS
diff --git a/version.txt b/version.txt
index f90b1af..45674f1 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-2.3.2
+2.3.3
\ No newline at end of file