diff --git a/source/worksheet/worksheet.cpp b/source/worksheet/worksheet.cpp
index b51b68e6..23c9ea7c 100644
--- a/source/worksheet/worksheet.cpp
+++ b/source/worksheet/worksheet.cpp
@@ -878,6 +878,41 @@ void worksheet::move_cells(std::uint32_t min_index, std::uint32_t amount, row_or
             add_column_properties(prop.first, prop.second);
         }
     }
+
+    // adjust merged cells
+    auto shift_reference = [min_index, amount, row_or_col, reverse](cell_reference &ref)
+    {
+        auto index = row_or_col == row_or_col_t::row ?
+                     ref.row() :
+                     ref.column_index();
+        if (index >= min_index)
+        {
+            auto new_index = reverse ? index - amount : index + amount;
+            if (row_or_col == row_or_col_t::row)
+            {
+                ref.row(new_index);
+            }
+            else if (row_or_col == row_or_col_t::column)
+            {
+                ref.column_index(new_index);
+            }
+        }
+    };
+
+    for (auto merged_cell = d_->merged_cells_.begin(); merged_cell != d_->merged_cells_.end(); ++merged_cell)
+    {
+        cell_reference new_top_left = merged_cell->top_left();
+        shift_reference(new_top_left);
+
+        cell_reference new_bottom_right = merged_cell->bottom_right();
+        shift_reference(new_bottom_right);
+
+        range_reference new_range {new_top_left, new_bottom_right};
+        if (*merged_cell != new_range)
+        {
+            *merged_cell = new_range;
+        }
+    }
 }
 
 bool worksheet::operator==(const worksheet &other) const
diff --git a/tests/worksheet/worksheet_test_suite.cpp b/tests/worksheet/worksheet_test_suite.cpp
index 8b67d676..1d9ee5d1 100644
--- a/tests/worksheet/worksheet_test_suite.cpp
+++ b/tests/worksheet/worksheet_test_suite.cpp
@@ -109,6 +109,7 @@ public:
         register_test(test_delete_rows);
         register_test(test_delete_columns);
         register_test(test_insert_too_many);
+        register_test(test_insert_delete_moves_merges);
     }
 
     void test_new_worksheet()
@@ -1500,5 +1501,49 @@ public:
         xlnt_assert_throws(ws.insert_rows(10, 4294967290),
                            xlnt::exception);
     }
+
+    void test_insert_delete_moves_merges()
+    {
+        xlnt::workbook wb;
+        auto ws = wb.active_sheet();
+        ws.merge_cells("A1:A2");
+        ws.merge_cells("B2:B3");
+        ws.merge_cells("C3:C4");
+        ws.merge_cells("A5:B5");
+        ws.merge_cells("B6:C6");
+        ws.merge_cells("C7:D7");
+
+        {
+            ws.insert_rows(3, 3);
+            ws.insert_columns(3, 3);
+            auto merged = ws.merged_ranges();
+            std::vector<xlnt::range_reference> expected =
+            {
+                xlnt::range_reference { "A1:A2"   }, // stays
+                xlnt::range_reference { "B2:B6"   }, // expands
+                xlnt::range_reference { "F6:F7"   }, // shifts
+                xlnt::range_reference { "A8:B8"   }, // stays (shifted down)
+                xlnt::range_reference { "B9:F9"   }, // expands (shifted down)
+                xlnt::range_reference { "F10:G10" }, // shifts (shifted down)
+            };
+            xlnt_assert_equals(merged, expected);
+        }
+
+        {
+            ws.delete_rows(4, 2);
+            ws.delete_columns(4, 2);
+            auto merged = ws.merged_ranges();
+            std::vector<xlnt::range_reference> expected =
+            {
+                xlnt::range_reference { "A1:A2" }, // stays
+                xlnt::range_reference { "B2:B4" }, // expands
+                xlnt::range_reference { "D4:D5" }, // shifts
+                xlnt::range_reference { "A6:B6" }, // stays (shifted down)
+                xlnt::range_reference { "B7:D7" }, // expands (shifted down)
+                xlnt::range_reference { "D8:E8" }, // shifts (shifted down)
+            };
+            xlnt_assert_equals(merged, expected);
+        }
+    }
 };
 static worksheet_test_suite x;
\ No newline at end of file