diff --git a/sol/sol_context.cpp b/sol/sol_context.cpp
index f0e036c..4428c9c 100644
--- a/sol/sol_context.cpp
+++ b/sol/sol_context.cpp
@@ -281,7 +281,7 @@
         }
         enableAccumulateTimer(true);
     }
-    catch (std::exception& e)
+    catch (const std::exception& e)
     {
         log<level::ERR>(e.what());
     }
@@ -305,7 +305,7 @@
             enableAccumulateTimer(true);
         }
     }
-    catch (std::exception& e)
+    catch (const std::exception& e)
     {
         log<level::ERR>(e.what());
     }
diff --git a/sol/sol_manager.cpp b/sol/sol_manager.cpp
index 2102032..698159d 100644
--- a/sol/sol_manager.cpp
+++ b/sol/sol_manager.cpp
@@ -261,7 +261,7 @@
                 });
         }
     }
-    catch (sdbusplus::exception_t& e)
+    catch (const sdbusplus::exception_t& e)
     {
         log<level::ERR>(
             "Failed to get service path in registerSOLServiceChangeCallback");