diff --git a/ports/gdcm/portfile.cmake b/ports/gdcm/portfile.cmake
index 99abfc8a6f0f60..3055b1a4220da2 100644
--- a/ports/gdcm/portfile.cmake
+++ b/ports/gdcm/portfile.cmake
@@ -3,8 +3,8 @@ vcpkg_check_linkage(ONLY_STATIC_LIBRARY)
 vcpkg_from_github(
     OUT_SOURCE_PATH SOURCE_PATH
     REPO malaterre/GDCM
-    REF c0824c0ae66e9f9e3c8bddba8b65238c1c28481d # v3.0.7
-    SHA512 1889f18f7164e1395e2cf5fe29b6ccd615f9a31433d1a7bda19cac472b20bc52018ef45bd9d9ca72ecb248c9fd5d895b94bfd111157693f70e0b90cf7b582edd
+    REF 1f94bafc929db3648612848836f7899f101d6641 # v3.0.12
+    SHA512 cec050c61d9880880b8b72234f8b0824a1f1fa8f9b2419fec85a0f27fe3bca4f9f80aa735b35775ac098f5827fde454aba700ebea17f5f8657894d26f5140f4a
     HEAD_REF master
     PATCHES
         use-openjpeg-config.patch
diff --git a/ports/gdcm/vcpkg.json b/ports/gdcm/vcpkg.json
index 8583fbda203812..e0dedd842baf45 100644
--- a/ports/gdcm/vcpkg.json
+++ b/ports/gdcm/vcpkg.json
@@ -1,9 +1,9 @@
 {
   "name": "gdcm",
-  "version": "3.0.7",
-  "port-version": 4,
+  "version": "3.0.12",
   "description": "Grassroots DICOM library",
   "homepage": "https://github.com/malaterre/GDCM",
+  "license": "BSD-3-Clause",
   "supports": "!uwp & !(windows & arm)",
   "dependencies": [
     "expat",
diff --git a/versions/baseline.json b/versions/baseline.json
index 9ac628a3b281a4..e65a7705225829 100644
--- a/versions/baseline.json
+++ b/versions/baseline.json
@@ -2437,8 +2437,8 @@
       "port-version": 0
     },
     "gdcm": {
-      "baseline": "3.0.7",
-      "port-version": 4
+      "baseline": "3.0.12",
+      "port-version": 0
     },
     "gdcm2": {
       "baseline": "deprecated",
diff --git a/versions/g-/gdcm.json b/versions/g-/gdcm.json
index 3c99bc96ff3840..f18a8a6e17a975 100644
--- a/versions/g-/gdcm.json
+++ b/versions/g-/gdcm.json
@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "d88a2229a173f1d38ae7beeb24d8169957968e74",
+      "version": "3.0.12",
+      "port-version": 0
+    },
     {
       "git-tree": "64bda232157a1119e4a16b3379294d13354e8971",
       "version": "3.0.7",