diff --git a/libdmet/lo/pywannier90.py b/libdmet/lo/pywannier90.py
index 9ba139d..f885c45 100755
--- a/libdmet/lo/pywannier90.py
+++ b/libdmet/lo/pywannier90.py
@@ -64,7 +64,7 @@
 try:
     libwann = lib.load_library(libwann_path)
 except OSError:
-    log.info("wannier90 library path not set or incorrectly.")
+    log.debug(2, "wannier90 library path not set or incorrectly.")
     libwann = None
 
 NUM_NNMAX = 12
diff --git a/libdmet/solver/impurity_solver.py b/libdmet/solver/impurity_solver.py
index 9b35ffc..71cf636 100644
--- a/libdmet/solver/impurity_solver.py
+++ b/libdmet/solver/impurity_solver.py
@@ -31,7 +31,7 @@
     from libdmet.solver.shci import SHCI
     __all__.append("SHCI")
 except ImportError:
-    log.info("ImportError in SHCI solver, settings.py should be set in pyscf")
+    log.debug(2, "ImportError in SHCI solver, settings.py should be set in pyscf")
 
 class Block(object):
     def __init__(self, nproc, nnode=1, TmpDir="./tmp", SharedDir=None,