diff --git a/external/InstallFlesnet.cmake b/external/InstallFlesnet.cmake
index 9b01cafdb3c88ed06d948f670b62630657a8fd72..4b7ebf47f28b25afafd08ad11e4d3f5b64510e1d 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 cdc7893481aa10d51070d965ae9fc6eebfe91ac2) # 2024-01-23
+set(FLESNET_VERSION accae08efb5f370e33f8eb51de9922fcf251c91a) # 2024-06-05
 
 set(FLESNET_SRC_URL "https://github.com/cbm-fles/flesnet")