diff --git a/include/ADCSensor.hpp b/include/ADCSensor.hpp
index 9e58139..9d2369b 100644
--- a/include/ADCSensor.hpp
+++ b/include/ADCSensor.hpp
@@ -34,7 +34,7 @@
                                   ? 0
                                   : gpiod::line_request::FLAG_ACTIVE_LOW});
             }
-            catch (std::system_error&)
+            catch (const std::system_error&)
             {
                 std::cerr << "Error requesting gpio: " << name << "\n";
             }
@@ -49,7 +49,7 @@
             {
                 line.set_value(value);
             }
-            catch (std::system_error& exc)
+            catch (const std::system_error& exc)
             {
                 std::cerr << "Error set_value: " << exc.what() << "\n";
             }
diff --git a/include/CPUSensor.hpp b/include/CPUSensor.hpp
index 29b8209..8b51b76 100644
--- a/include/CPUSensor.hpp
+++ b/include/CPUSensor.hpp
@@ -100,7 +100,7 @@
                       activeHigh ? 0 : gpiod::line_request::FLAG_ACTIVE_LOW});
         resp = line.get_value();
     }
-    catch (std::system_error&)
+    catch (const std::system_error&)
     {
         std::cerr << "Error reading gpio: " << gpioName << "\n";
         return false;
diff --git a/src/ADCSensor.cpp b/src/ADCSensor.cpp
index 8c335e5..e367c17 100644
--- a/src/ADCSensor.cpp
+++ b/src/ADCSensor.cpp
@@ -172,7 +172,7 @@
             nvalue = std::round(nvalue * roundFactor) / roundFactor;
             updateValue(nvalue);
         }
-        catch (std::invalid_argument&)
+        catch (const std::invalid_argument&)
         {
             incrementError();
         }
diff --git a/src/ADCSensorMain.cpp b/src/ADCSensorMain.cpp
index c3239c2..eea2766 100644
--- a/src/ADCSensorMain.cpp
+++ b/src/ADCSensorMain.cpp
@@ -367,7 +367,7 @@
             {
                 index = std::stoi(path.substr(path.size() - 1));
             }
-            catch (std::invalid_argument&)
+            catch (const std::invalid_argument&)
             {
                 std::cerr << "Found invalid path " << path << "\n";
                 return;
diff --git a/src/CPUSensorMain.cpp b/src/CPUSensorMain.cpp
index 73f2ee1..3d602bf 100644
--- a/src/CPUSensorMain.cpp
+++ b/src/CPUSensorMain.cpp
@@ -208,7 +208,7 @@
             bus = std::stoi(busStr);
             addr = std::stoi(addrStr, nullptr, 16);
         }
-        catch (std::invalid_argument&)
+        catch (const std::invalid_argument&)
         {
             continue;
         }
diff --git a/src/ChassisIntrusionSensor.cpp b/src/ChassisIntrusionSensor.cpp
index af5ced3..4b89709 100644
--- a/src/ChassisIntrusionSensor.cpp
+++ b/src/ChassisIntrusionSensor.cpp
@@ -246,7 +246,7 @@
 
         mGpioFd.assign(gpioLineFd);
     }
-    catch (std::system_error&)
+    catch (const std::system_error&)
     {
         std::cerr << "ChassisInrtusionSensor error requesting gpio pin name: "
                   << mPinName << "\n";
diff --git a/src/HwmonTempMain.cpp b/src/HwmonTempMain.cpp
index dbc0d2d..20af79d 100644
--- a/src/HwmonTempMain.cpp
+++ b/src/HwmonTempMain.cpp
@@ -113,7 +113,7 @@
                     bus = std::stoi(busStr);
                     addr = std::stoi(addrStr, nullptr, 16);
                 }
-                catch (std::invalid_argument&)
+                catch (const std::invalid_argument&)
                 {
                     continue;
                 }
diff --git a/src/PSUSensorMain.cpp b/src/PSUSensorMain.cpp
index e979189..7576e68 100644
--- a/src/PSUSensorMain.cpp
+++ b/src/PSUSensorMain.cpp
@@ -326,7 +326,7 @@
             bus = std::stoi(busStr);
             addr = std::stoi(addrStr, nullptr, 16);
         }
-        catch (std::invalid_argument&)
+        catch (const std::invalid_argument&)
         {
             std::cerr << "Error parsing bus " << busStr << " addr " << addrStr
                       << "\n";
@@ -642,7 +642,7 @@
                     psuProperty->labelTypeName = std::visit(
                         VariantToStringVisitor(), findCustomName->second);
                 }
-                catch (std::invalid_argument&)
+                catch (const std::invalid_argument&)
                 {
                     std::cerr << "Unable to parse " << keyName << "\n";
                     continue;
@@ -661,7 +661,7 @@
                     psuProperty->sensorScaleFactor = std::visit(
                         VariantToUnsignedIntVisitor(), findCustomScale->second);
                 }
-                catch (std::invalid_argument&)
+                catch (const std::invalid_argument&)
                 {
                     std::cerr << "Unable to parse " << keyScale << "\n";
                     continue;
@@ -687,7 +687,7 @@
                     psuProperty->minReading = std::visit(
                         VariantToDoubleVisitor(), findCustomMin->second);
                 }
-                catch (std::invalid_argument&)
+                catch (const std::invalid_argument&)
                 {
                     std::cerr << "Unable to parse " << keyMin << "\n";
                     continue;
@@ -702,7 +702,7 @@
                     psuProperty->maxReading = std::visit(
                         VariantToDoubleVisitor(), findCustomMax->second);
                 }
-                catch (std::invalid_argument&)
+                catch (const std::invalid_argument&)
                 {
                     std::cerr << "Unable to parse " << keyMax << "\n";
                     continue;
@@ -717,7 +717,7 @@
                     psuProperty->sensorOffset = std::visit(
                         VariantToDoubleVisitor(), findCustomOffset->second);
                 }
-                catch (std::invalid_argument&)
+                catch (const std::invalid_argument&)
                 {
                     std::cerr << "Unable to parse " << keyOffset << "\n";
                     continue;
diff --git a/src/PwmSensor.cpp b/src/PwmSensor.cpp
index f76ea50..7b03e68 100644
--- a/src/PwmSensor.cpp
+++ b/src/PwmSensor.cpp
@@ -199,7 +199,7 @@
         uint32_t value = std::stoi(line);
         return value;
     }
-    catch (std::invalid_argument&)
+    catch (const std::invalid_argument&)
     {
         std::cerr << "Error reading pwm at " << sysPath << "\n";
         // throw if not initial read to be caught by dbus bindings
diff --git a/src/TachSensor.cpp b/src/TachSensor.cpp
index d2afba7..30ab202 100644
--- a/src/TachSensor.cpp
+++ b/src/TachSensor.cpp
@@ -228,7 +228,7 @@
 
         gpioFd.assign(gpioLineFd);
     }
-    catch (std::system_error&)
+    catch (const std::system_error&)
     {
         std::cerr << "Error reading gpio: " << gpioName << "\n";
         status = false;