diff --git a/CMakeLists.txt b/CMakeLists.txt
index c5ae45c..7463aaa 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 3.0)
 
-project(libfort VERSION 0.4.1)
+project(libfort VERSION 0.4.2)
 
 string(REGEX REPLACE "([0-9]+)\\.([0-9]+)\\.([0-9]+)"
     "\\1.\\2" libfort_SOVERSION
diff --git a/ChangeLog.md b/ChangeLog.md
index 73ed4aa..82529b9 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,3 +1,9 @@
+## v0.4.2
+
+### Internal
+
+- Add builds with gcc-9 to CI.
+
 ## v0.4.1
 
 ### Bug fixes
diff --git a/lib/fort.h b/lib/fort.h
index 023653e..5cc77f9 100644
--- a/lib/fort.h
+++ b/lib/fort.h
@@ -46,8 +46,8 @@ SOFTWARE.
 
 #define LIBFORT_MAJOR_VERSION 0
 #define LIBFORT_MINOR_VERSION 4
-#define LIBFORT_REVISION 1
-#define LIBFORT_VERSION_STR "0.4.1"
+#define LIBFORT_REVISION 2
+#define LIBFORT_VERSION_STR "0.4.2"
 
 
 /*****************************************************************************
diff --git a/src/fort.h b/src/fort.h
index 023653e..5cc77f9 100644
--- a/src/fort.h
+++ b/src/fort.h
@@ -46,8 +46,8 @@ SOFTWARE.
 
 #define LIBFORT_MAJOR_VERSION 0
 #define LIBFORT_MINOR_VERSION 4
-#define LIBFORT_REVISION 1
-#define LIBFORT_VERSION_STR "0.4.1"
+#define LIBFORT_REVISION 2
+#define LIBFORT_VERSION_STR "0.4.2"
 
 
 /*****************************************************************************