diff --git a/setup.cfg b/setup.cfg
index 58bc7bbef..bbd882a70 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -32,11 +32,11 @@ project_urls =
 packages = find:
 install_requires =
     colorlog
-    dspeed>=1.1
+    dspeed>=1.1,<1.3
     h5py>=3.2
     iminuit
-    legend-daq2lh5>=1.0
-    legend-pydataobj>=1.3
+    legend-daq2lh5>=1.0,<1.2
+    legend-pydataobj>=1.3,<1.5
     matplotlib
     numba!=0.53.*,!=0.54.*,!=0.57
     numpy>=1.21