diff --git a/external/InstallFlesnet.cmake b/external/InstallFlesnet.cmake
index 44f3813e331c7ebff52536bf72b7e1c3d90f7f08..95b4c7004050a989bf769d2caaaa042ede8c4e10 100644
--- a/external/InstallFlesnet.cmake
+++ b/external/InstallFlesnet.cmake
@@ -3,7 +3,7 @@
 # The included libraries provide the interface to the experiment data in timeslices
 # both online and in timeslice archive (.tsa) files.
 
-set(FLESNET_VERSION e553a5fbd4d1ccc2c55ea11632c38f24516b8461) # 2023-10-12
+set(FLESNET_VERSION cdc7893481aa10d51070d965ae9fc6eebfe91ac2) # 2024-01-23
 
 set(FLESNET_SRC_URL "https://github.com/cbm-fles/flesnet")