diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index ba1c8cb..654a80e 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -14,7 +14,7 @@ jobs:
 
     steps:
     - name: Checkout code
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
 
     - name: Install C++ tools
       run: sudo apt-get update && sudo apt-get install -y clang clang-tidy cppcheck cmake
@@ -45,7 +45,7 @@ jobs:
       run: find . -name '*.cpp' | xargs clang-tidy -p build
 
     - name: Upload cppcheck results
-      uses: actions/upload-artifact@v2
+      uses: actions/upload-artifact@v3
       with:
         name: cppcheck-result
         path: cppcheck-result.xml
diff --git a/src/Reservation.cpp b/src/Reservation.cpp
index 9985f4b..161d766 100644
--- a/src/Reservation.cpp
+++ b/src/Reservation.cpp
@@ -75,7 +75,7 @@ void Reservation::bookTicket()
 
         while (!busFileStream.eof())
         {
-            if (_strcmpi(b.getSource(), from) == 0 && _strcmpi(b.getDestination(), to) == 0)
+            if (strcmp(b.getSource(), from) == 0 && strcmp(b.getDestination(), to) == 0)
             {
                 b._displayBusDetails();
                 chk = 1;
@@ -105,7 +105,7 @@ void Reservation::bookTicket()
 
             while (!busFileStream.eof())
             {
-                if (_strcmpi(b.getSource(), from) == 0 && _strcmpi(b.getDestination(), to) == 0 && strcmp(b.getBusNo(), bNo) == 0)
+                if (strcmp(b.getSource(), from) == 0 && strcmp(b.getDestination(), to) == 0 && strcmp(b.getBusNo(), bNo) == 0)
                 {
                     if (b.getBookedSeats() >= 32)
                     {
@@ -503,7 +503,7 @@ void Reservation::viewReservationsBySource()
 
         while (!ticketFileStream.eof())
         {
-            if (_strcmpi(bus.getSource(), s) == 0)
+            if (strcmp(bus.getSource(), s) == 0)
             {
                 _displayReservationDetails();
                 chk = 1;
@@ -550,7 +550,7 @@ void Reservation::viewReservationsByDestination()
 
         while (!ticketFileStream.eof())
         {
-            if (_strcmpi(bus.getDestination(), d) == 0)
+            if (strcmp(bus.getDestination(), d) == 0)
             {
                 _displayReservationDetails();
                 chk = 1;