diff --git a/tests/controls/gridtest.cpp b/tests/controls/gridtest.cpp
index 50e7f2f730..74a980d28b 100644
--- a/tests/controls/gridtest.cpp
+++ b/tests/controls/gridtest.cpp
@@ -1841,7 +1841,7 @@ TEST_CASE_METHOD(GridTestCase,
     // repeat the same tests for both rows and columns as the code for
     // updating them works symmetrically.
 
-    GIVEN(Catch::toString(multi))
+    GIVEN(multi.ToString())
     {
         FitGridToMulticell(m_grid, multi);
         m_grid->SetMulticell(multi);
@@ -1876,7 +1876,7 @@ TEST_CASE_METHOD(GridTestCase,
 
     wxSwap(multi.rows, multi.cols);
 
-    GIVEN(Catch::toString(multi))
+    GIVEN(multi.ToString())
     {
         FitGridToMulticell(m_grid, multi);
         m_grid->SetMulticell(multi);
@@ -1958,7 +1958,7 @@ TEST_CASE_METHOD(GridTestCase,
 
     Multicell multi(1, 1, 5, 3);
 
-    GIVEN(Catch::toString(multi))
+    GIVEN(multi.ToString())
     {
         FitGridToMulticell(m_grid, multi);
         m_grid->SetMulticell(multi);
@@ -1993,7 +1993,7 @@ TEST_CASE_METHOD(GridTestCase,
 
     wxSwap(multi.rows, multi.cols);
 
-    GIVEN(Catch::toString(multi))
+    GIVEN(multi.ToString())
     {
         FitGridToMulticell(m_grid, multi);
         m_grid->SetMulticell(multi);
diff --git a/tests/image/image.cpp b/tests/image/image.cpp
index 77ee78d0ee..70894ea7bd 100644
--- a/tests/image/image.cpp
+++ b/tests/image/image.cpp
@@ -1400,7 +1400,7 @@ FindMaxChannelDiff(const wxImage& i1, const wxImage& i2)
         const wxImage imageFromFile(file); \
         if ( imageFromFile.IsOk() ) \
         { \
-            INFO("Wrong scaled \"" << file << "\" " << Catch::toString(image)); \
+            INFO("Wrong scaled \"" << file << "\" " << Catch::StringMaker<wxImage>::convert(image)); \
             CHECK(FindMaxChannelDiff(imageFromFile, image) <= 1); \
         } \
         else \
diff --git a/tests/testimage.h b/tests/testimage.h
index d5d90b5c5e..557d9a945f 100644
--- a/tests/testimage.h
+++ b/tests/testimage.h
@@ -145,7 +145,7 @@ public:
     std::string describe() const override
     {
         std::string desc = "doesn't have the same RGB data as " +
-                                Catch::toString(m_image);
+                                Catch::StringMaker<wxImage>::convert(m_image);
 
         if ( !m_diffDesc.empty() )
             desc += + ": " + m_diffDesc.ToStdString(wxConvUTF8);