diff --git a/src/dsm/dsm.hpp b/src/dsm/dsm.hpp
index 26c9f7784..9cfc9d020 100644
--- a/src/dsm/dsm.hpp
+++ b/src/dsm/dsm.hpp
@@ -6,7 +6,7 @@
 
 static constexpr uint8_t DSM_VERSION_MAJOR = 2;
 static constexpr uint8_t DSM_VERSION_MINOR = 3;
-static constexpr uint8_t DSM_VERSION_PATCH = 22;
+static constexpr uint8_t DSM_VERSION_PATCH = 23;
 
 static auto const DSM_VERSION =
     std::format("{}.{}.{}", DSM_VERSION_MAJOR, DSM_VERSION_MINOR, DSM_VERSION_PATCH);
diff --git a/src/dsm/sources/AdjacencyMatrix.cpp b/src/dsm/sources/AdjacencyMatrix.cpp
index 5eda6018a..7145f8922 100644
--- a/src/dsm/sources/AdjacencyMatrix.cpp
+++ b/src/dsm/sources/AdjacencyMatrix.cpp
@@ -65,9 +65,11 @@ namespace dsm {
 
   void AdjacencyMatrix::insert(Id row, Id col) {
     if (row > m_rowOffsets.size() - 2) {
-      for (auto i = 0ul; i < row - m_rowOffsets.size() + 2; ++i) {
-        m_rowOffsets.push_back(m_rowOffsets.back() + 1);
+      auto n = row - m_rowOffsets.size() + 2;
+      for (auto i = 0ul; i < n - 1; ++i) {
+        m_rowOffsets.push_back(m_rowOffsets.back());
       }
+      m_rowOffsets.push_back(m_rowOffsets.back() + 1);
       m_nRows = row + 1;
     } else {
       std::for_each(
diff --git a/test/Test_AdjacencyMatrix.cpp b/test/Test_AdjacencyMatrix.cpp
index 1d409e623..394dfd5c6 100644
--- a/test/Test_AdjacencyMatrix.cpp
+++ b/test/Test_AdjacencyMatrix.cpp
@@ -220,3 +220,42 @@ TEST_CASE("Test construction from edge map") {
     CHECK_EQ(adj, adj2);
   }
 }
+
+TEST_CASE("Test insertion of random values") {
+  AdjacencyMatrix adj;
+  adj.insert(4, 2);
+  auto offsets = test::offsets(adj);
+  auto indices = test::indices(adj);
+  CHECK_EQ(offsets.size(), 6);
+  std::for_each(
+      offsets.begin(), offsets.begin() + 5, [](auto value) { CHECK(value == 0); });
+  CHECK_EQ(offsets[5], 1);
+  CHECK_EQ(indices.size(), 1);
+  CHECK_EQ(indices[0], 2);
+
+  adj.insert(63, 268);
+  offsets = test::offsets(adj);
+  indices = test::indices(adj);
+  CHECK(offsets.size() == 65);
+  std::for_each(
+      offsets.begin() + 5, offsets.begin() + 63, [](auto value) { CHECK(value == 1); });
+  CHECK_EQ(offsets[64], 2);
+  CHECK_EQ(indices.size(), 2);
+  CHECK_EQ(indices[1], 268);
+
+  adj.insert(2, 3);
+  offsets = test::offsets(adj);
+  indices = test::indices(adj);
+  CHECK_EQ(offsets.size(), 65);
+  CHECK_EQ(offsets[0], 0);
+  CHECK_EQ(offsets[2], 0);
+  CHECK_EQ(offsets[3], 1);
+  CHECK_EQ(offsets[4], 1);
+  CHECK_EQ(offsets[5], 2);
+  CHECK_EQ(offsets[63], 2);
+  CHECK_EQ(offsets[64], 3);
+  CHECK_EQ(indices.size(), 3);
+  CHECK_EQ(indices[0], 3);
+  CHECK_EQ(indices[1], 2);
+  CHECK_EQ(indices[2], 268);
+}