diff --git a/test/Makefile b/test/Makefile
index 6bade2ca3..4f00cbc7a 100644
--- a/test/Makefile
+++ b/test/Makefile
@@ -30,7 +30,6 @@ SOURCES = src/unit.cpp \
           src/unit-items.cpp \
           src/unit-iterators1.cpp \
           src/unit-iterators2.cpp \
-          src/unit-invalid_utf8.cpp \
           src/unit-merge_patch.cpp \
           src/unit-json_patch.cpp \
           src/unit-json_pointer.cpp \
diff --git a/test/src/unit-invalid_utf8.cpp b/test/src/unit-invalid_utf8.cpp
deleted file mode 100644
index 36f1ada00..000000000
--- a/test/src/unit-invalid_utf8.cpp
+++ /dev/null
@@ -1,68 +0,0 @@
-/*
-    __ _____ _____ _____
- __|  |   __|     |   | |  JSON for Modern C++ (test suite)
-|  |  |__   |  |  | | | |  version 3.5.0
-|_____|_____|_____|_|___|  https://github.com/nlohmann/json
-
-Licensed under the MIT License <http://opensource.org/licenses/MIT>.
-SPDX-License-Identifier: MIT
-Copyright (c) 2013-2018 Niels Lohmann <http://nlohmann.me>.
-
-Permission is hereby  granted, free of charge, to any  person obtaining a copy
-of this software and associated  documentation files (the "Software"), to deal
-in the Software  without restriction, including without  limitation the rights
-to  use, copy,  modify, merge,  publish, distribute,  sublicense, and/or  sell
-copies  of  the Software,  and  to  permit persons  to  whom  the Software  is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE  IS PROVIDED "AS  IS", WITHOUT WARRANTY  OF ANY KIND,  EXPRESS OR
-IMPLIED,  INCLUDING BUT  NOT  LIMITED TO  THE  WARRANTIES OF  MERCHANTABILITY,
-FITNESS FOR  A PARTICULAR PURPOSE AND  NONINFRINGEMENT. IN NO EVENT  SHALL THE
-AUTHORS  OR COPYRIGHT  HOLDERS  BE  LIABLE FOR  ANY  CLAIM,  DAMAGES OR  OTHER
-LIABILITY, WHETHER IN AN ACTION OF  CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE  OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
-*/
-
-#include "catch.hpp"
-#include <nlohmann/json.hpp>
-using nlohmann::json;
-
-#include <fstream>
-#include <sstream>
-
-TEST_CASE("INVALID-UTF8")
-{
-    SECTION("a bunch of -1, ensure_ascii=true")
-    {
-        json dump_test;
-        std::vector<char> data(300, -1);
-        std::vector<std::string> vec_string(300, "\\ufffd");
-        std::string s{data.data(), data.size()};
-        dump_test["1"] = s;
-        std::ostringstream os;
-        os << "{\"1\":\"";
-        std::copy( vec_string.begin(), vec_string.end(), std::ostream_iterator<std::string>(os));
-        os << "\"}";
-        s = dump_test.dump(-1, ' ', true, nlohmann::json::error_handler_t::replace);
-        CHECK(s == os.str());
-    }
-    SECTION("a bunch of -2, ensure_ascii=false")
-    {
-        json dump_test;
-        std::vector<char> data(500, -2);
-        std::vector<std::string> vec_string(500, "\xEF\xBF\xBD");
-        std::string s{data.data(), data.size()};
-        dump_test["1"] = s;
-        std::ostringstream os;
-        os << "{\"1\":\"";
-        std::copy( vec_string.begin(), vec_string.end(), std::ostream_iterator<std::string>(os));
-        os << "\"}";
-        s = dump_test.dump(-1, ' ', false, nlohmann::json::error_handler_t::replace);
-        CHECK(s == os.str());
-    }
-
-}
diff --git a/test/src/unit-regression.cpp b/test/src/unit-regression.cpp
index e739e3c3d..a2d61550d 100644
--- a/test/src/unit-regression.cpp
+++ b/test/src/unit-regression.cpp
@@ -1708,6 +1708,67 @@ TEST_CASE("regression tests")
         const auto data = j.get<decltype(expected)>();
         CHECK(expected == data);
     }
+
+    SECTION("issue #1445 - buffer overflow in dumping invalid utf-8 strings")
+    {
+        SECTION("a bunch of -1, ensure_ascii=true")
+        {
+            json dump_test;
+            std::vector<char> data(300, -1);
+            std::vector<std::string> vec_string(300, "\\ufffd");
+            std::string s{data.data(), data.size()};
+            dump_test["1"] = s;
+            std::ostringstream os;
+            os << "{\"1\":\"";
+            std::copy( vec_string.begin(), vec_string.end(), std::ostream_iterator<std::string>(os));
+            os << "\"}";
+            s = dump_test.dump(-1, ' ', true, nlohmann::json::error_handler_t::replace);
+            CHECK(s == os.str());
+        }
+        SECTION("a bunch of -2, ensure_ascii=false")
+        {
+            json dump_test;
+            std::vector<char> data(500, -2);
+            std::vector<std::string> vec_string(500, "\xEF\xBF\xBD");
+            std::string s{data.data(), data.size()};
+            dump_test["1"] = s;
+            std::ostringstream os;
+            os << "{\"1\":\"";
+            std::copy( vec_string.begin(), vec_string.end(), std::ostream_iterator<std::string>(os));
+            os << "\"}";
+            s = dump_test.dump(-1, ' ', false, nlohmann::json::error_handler_t::replace);
+            CHECK(s == os.str());
+        }
+        SECTION("test case in issue #1445")
+        {
+            nlohmann::json dump_test;
+            const int data[] = {
+                109,  108,  103,  125,  -122, -53,  115,
+                18,   3,    0,    102,  19,   1,    15,
+                -110, 13,   -3,   -1,   -81,  32,   2,
+                0,    0,    0,    0,    0,    0,    0,
+                8,    0,    0,    0,    0,    0,    0,
+                0,    0,    0,    0,    0,    -80,  2,
+                0,    0,    96,   -118, 46,   -116, 46,
+                109,  -84,  -87,  108,  14,   109,  -24,
+                -83,  13,   -18,  -51,  -83,  -52,  -115,
+                14,   6,    32,   0,    0,    0,    0,
+                0,    0,    0,    0,    0,    0,    0,
+                64,   3,    0,    0,    0,    35,   -74,
+                -73,  55,   57,   -128, 0,    0,    0,
+                0,    0,    0,    0,    0,    0,    0,
+                0,    0,    33,   0,    0,    0,    -96,
+                -54,  -28,  -26
+            };
+            std::string s;
+            for (int i=0; i<sizeof(data)/sizeof(int); i++)
+            {
+                s += static_cast<char>(data[i]);
+            }
+            dump_test["1"] = s;
+            dump_test.dump(-1, ' ', true, nlohmann::json::error_handler_t::replace);
+        }
+    }
 }
 
 TEST_CASE("regression tests, exceptions dependent", "[!throws]")