diff --git a/src/catch2/reporters/catch_reporter_automake.hpp b/src/catch2/reporters/catch_reporter_automake.hpp
index 6e376e90..84fad790 100644
--- a/src/catch2/reporters/catch_reporter_automake.hpp
+++ b/src/catch2/reporters/catch_reporter_automake.hpp
@@ -12,7 +12,7 @@
 
 namespace Catch {
 
-    struct AutomakeReporter : StreamingReporterBase {
+    struct AutomakeReporter final : StreamingReporterBase {
         AutomakeReporter( ReporterConfig const& _config )
           :   StreamingReporterBase( _config )
         {}
diff --git a/src/catch2/reporters/catch_reporter_compact.hpp b/src/catch2/reporters/catch_reporter_compact.hpp
index 0c632f76..b39bd18a 100644
--- a/src/catch2/reporters/catch_reporter_compact.hpp
+++ b/src/catch2/reporters/catch_reporter_compact.hpp
@@ -14,7 +14,7 @@
 
 namespace Catch {
 
-    struct CompactReporter : StreamingReporterBase {
+    struct CompactReporter final : StreamingReporterBase {
 
         using StreamingReporterBase::StreamingReporterBase;
 
diff --git a/src/catch2/reporters/catch_reporter_console.hpp b/src/catch2/reporters/catch_reporter_console.hpp
index 5a1765b3..ec743093 100644
--- a/src/catch2/reporters/catch_reporter_console.hpp
+++ b/src/catch2/reporters/catch_reporter_console.hpp
@@ -16,7 +16,7 @@ namespace Catch {
     struct SummaryColumn;
     class TablePrinter;
 
-    struct ConsoleReporter : StreamingReporterBase {
+    struct ConsoleReporter final : StreamingReporterBase {
         Detail::unique_ptr<TablePrinter> m_tablePrinter;
 
         ConsoleReporter(ReporterConfig const& config);
diff --git a/src/catch2/reporters/catch_reporter_junit.hpp b/src/catch2/reporters/catch_reporter_junit.hpp
index 3d68b7f6..6665663c 100644
--- a/src/catch2/reporters/catch_reporter_junit.hpp
+++ b/src/catch2/reporters/catch_reporter_junit.hpp
@@ -15,7 +15,7 @@
 
 namespace Catch {
 
-    class JunitReporter : public CumulativeReporterBase {
+    class JunitReporter final : public CumulativeReporterBase {
     public:
         JunitReporter(ReporterConfig const& _config);
 
diff --git a/src/catch2/reporters/catch_reporter_sonarqube.hpp b/src/catch2/reporters/catch_reporter_sonarqube.hpp
index a4f60ea6..720c0ea0 100644
--- a/src/catch2/reporters/catch_reporter_sonarqube.hpp
+++ b/src/catch2/reporters/catch_reporter_sonarqube.hpp
@@ -14,7 +14,7 @@
 
 namespace Catch {
 
-    struct SonarQubeReporter : CumulativeReporterBase {
+    struct SonarQubeReporter final : CumulativeReporterBase {
 
         SonarQubeReporter(ReporterConfig const& config)
         : CumulativeReporterBase(config)
diff --git a/src/catch2/reporters/catch_reporter_tap.hpp b/src/catch2/reporters/catch_reporter_tap.hpp
index 87855847..e7c22cfa 100644
--- a/src/catch2/reporters/catch_reporter_tap.hpp
+++ b/src/catch2/reporters/catch_reporter_tap.hpp
@@ -12,7 +12,7 @@
 
 namespace Catch {
 
-    struct TAPReporter : StreamingReporterBase {
+    struct TAPReporter final : StreamingReporterBase {
 
         TAPReporter( ReporterConfig const& config ):
             StreamingReporterBase( config ) {
diff --git a/src/catch2/reporters/catch_reporter_teamcity.hpp b/src/catch2/reporters/catch_reporter_teamcity.hpp
index f387cafb..7abe8185 100644
--- a/src/catch2/reporters/catch_reporter_teamcity.hpp
+++ b/src/catch2/reporters/catch_reporter_teamcity.hpp
@@ -20,7 +20,7 @@
 
 namespace Catch {
 
-    struct TeamCityReporter : StreamingReporterBase {
+    struct TeamCityReporter final : StreamingReporterBase {
         TeamCityReporter( ReporterConfig const& _config )
         :   StreamingReporterBase( _config )
         {