diff --git a/CMakeLists.txt b/CMakeLists.txt
index a01822dc..419cd974 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -10,7 +10,7 @@ project(powsybl-iidm4cpp)
 
 set(IIDM_VERSION_MAJOR 1)
 set(IIDM_VERSION_MINOR 5)
-set(IIDM_VERSION_PATCH 0)
+set(IIDM_VERSION_PATCH 1)
 set(IIDM_VERSION ${IIDM_VERSION_MAJOR}.${IIDM_VERSION_MINOR}.${IIDM_VERSION_PATCH})
 set(IIDM_SOVERSION ${IIDM_VERSION_MAJOR})