diff --git a/ports/matio/CONTROL b/ports/matio/CONTROL
index fe3f5687c91..0d304a646d6 100644
--- a/ports/matio/CONTROL
+++ b/ports/matio/CONTROL
@@ -1,5 +1,5 @@
 Source: matio
-Version: 1.5.17
+Version: 1.5.19
 Homepage: https://github.com/tbeu/matio
 Description: MATLAB MAT File I/O Library
 Build-Depends: zlib, hdf5
diff --git a/ports/matio/portfile.cmake b/ports/matio/portfile.cmake
index 72dc41c1f86..a1e55d41dd0 100644
--- a/ports/matio/portfile.cmake
+++ b/ports/matio/portfile.cmake
@@ -1,8 +1,8 @@
 vcpkg_from_github(
     OUT_SOURCE_PATH SOURCE_PATH
     REPO tbeu/matio
-    REF 64f793668e09216029447990702c145403d14375 # v1.5.17
-    SHA512 bbb1c5f1f2609d329b69963f16ff8b60052922f83513d20f3ef687c04c4278536b88116c4727855de06f12ddf34103fe4be250012ae24706868490583ee90fde
+    REF ca56394e5672115df1981996ed12524d1d551259 # v1.5.19
+    SHA512 67c239d8aabafaa935775f3b260ba0756c196b0d845ef5116365c9aa6a0b24dae70d92c4e74d5d43ae073ae0744f084f0f58ead864eb77c813d43dbbb3e4ec5e
     HEAD_REF master
 )
 
diff --git a/versions/baseline.json b/versions/baseline.json
index a26c3fd7363..2df1d8c68f3 100644
--- a/versions/baseline.json
+++ b/versions/baseline.json
@@ -3693,7 +3693,7 @@
       "port-version": 0
     },
     "matio": {
-      "baseline": "1.5.17",
+      "baseline": "1.5.19",
       "port-version": 0
     },
     "matplotlib-cpp": {
diff --git a/versions/m-/matio.json b/versions/m-/matio.json
index 277c30127a8..12b26f4ece2 100644
--- a/versions/m-/matio.json
+++ b/versions/m-/matio.json
@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "09b997c5cb31fdde33faf650612324a847967360",
+      "version-string": "1.5.19",
+      "port-version": 0
+    },
     {
       "git-tree": "90525e6933ec5814eced741e449185df46f158ea",
       "version-string": "1.5.17",