diff --git a/ports/proj/portfile.cmake b/ports/proj/portfile.cmake
index 15f16cff95..696532a19d 100644
--- a/ports/proj/portfile.cmake
+++ b/ports/proj/portfile.cmake
@@ -2,7 +2,7 @@ vcpkg_from_github(
     OUT_SOURCE_PATH SOURCE_PATH
     REPO OSGeo/PROJ
     REF "${VERSION}"
-    SHA512 87070e95be1ddaf816d712ab64b0a3834bb61d7a8be0e578a38f5e3346ec4ebdaf901da4bbd325174fb2379ead97a9fe042ac658ca5a1e096c15db0e9f37c8c7
+    SHA512 133d01a0667886540630274fc93142b282a034ede9caa53a78e34d3ed888c20d4413af7702e9d255366a0b00d3a6675797813d1b4a4f0abef0c6c97a505aa53a
     HEAD_REF master
     PATCHES
         pkgconfig.diff
diff --git a/ports/proj/vcpkg.json b/ports/proj/vcpkg.json
index 5ad9765b96..b11caf1539 100644
--- a/ports/proj/vcpkg.json
+++ b/ports/proj/vcpkg.json
@@ -1,6 +1,6 @@
 {
   "name": "proj",
-  "version": "9.8.0",
+  "version": "9.8.1",
   "description": "PROJ library for cartographic projections",
   "homepage": "https://proj.org/",
   "license": "MIT",
diff --git a/versions/baseline.json b/versions/baseline.json
index 8a01183798..29cb0e0c34 100644
--- a/versions/baseline.json
+++ b/versions/baseline.json
@@ -7909,7 +7909,7 @@
       "port-version": 0
     },
     "proj": {
-      "baseline": "9.8.0",
+      "baseline": "9.8.1",
       "port-version": 0
     },
     "projectm": {
diff --git a/versions/p-/proj.json b/versions/p-/proj.json
index 9d3535c23c..432c9fdb9f 100644
--- a/versions/p-/proj.json
+++ b/versions/p-/proj.json
@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "1de15a0f14e29efa397eb6f1445c7658f42e459b",
+      "version": "9.8.1",
+      "port-version": 0
+    },
     {
       "git-tree": "1c4d478c0b3daa4a59cacda76e351274cdce6892",
       "version": "9.8.0",