diff --git a/ports/prometheus-cpp/portfile.cmake b/ports/prometheus-cpp/portfile.cmake
index 1f29abf0f2a..ce2c018fff7 100644
--- a/ports/prometheus-cpp/portfile.cmake
+++ b/ports/prometheus-cpp/portfile.cmake
@@ -3,8 +3,8 @@ vcpkg_check_linkage(ONLY_STATIC_LIBRARY)
 vcpkg_from_github(
     OUT_SOURCE_PATH SOURCE_PATH
     REPO jupp0r/prometheus-cpp
-    REF 84388828ae80556f57e11249dbd0063043991fb4 # v0.12.3
-    SHA512 3d8c42b7fa15b5ccc5684a590cadb09cc9adf76a66f3fa0f8b791d9ee1f1442687c554215a21ff932b62d7aac8a6e5dd6e581d2de4faae3aa9ab02e73a60533f
+    REF 342de5e93bd0cbafde77ec801f9dd35a03bceb3f # v0.13.0
+    SHA512 2edd093dff57109f4e7050f7d870010e696642f0445a8d50f689a9a7e8f4704e74659846c1afcdfcd700ceeb64b48ea83159e87ca00ca58de4866dd39975590b
     HEAD_REF master
 )
 
diff --git a/ports/prometheus-cpp/vcpkg.json b/ports/prometheus-cpp/vcpkg.json
index 246c7e45177..371b1e7380d 100644
--- a/ports/prometheus-cpp/vcpkg.json
+++ b/ports/prometheus-cpp/vcpkg.json
@@ -1,7 +1,6 @@
 {
   "name": "prometheus-cpp",
-  "version-string": "0.12.3",
-  "port-version": 1,
+  "version-semver": "0.13.0",
   "description": "Prometheus Client Library for Modern C++",
   "default-features": [
     "compression",
diff --git a/versions/baseline.json b/versions/baseline.json
index 6ea64c553d0..dde7de7a237 100644
--- a/versions/baseline.json
+++ b/versions/baseline.json
@@ -5165,8 +5165,8 @@
       "port-version": 5
     },
     "prometheus-cpp": {
-      "baseline": "0.12.3",
-      "port-version": 1
+      "baseline": "0.13.0",
+      "port-version": 0
     },
     "protobuf": {
       "baseline": "3.15.8",
diff --git a/versions/p-/prometheus-cpp.json b/versions/p-/prometheus-cpp.json
index 639f6d64c1c..5b58285a32b 100644
--- a/versions/p-/prometheus-cpp.json
+++ b/versions/p-/prometheus-cpp.json
@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "ae46bbdb51c6ff3e330c607e46b911b79e0ce7e3",
+      "version-semver": "0.13.0",
+      "port-version": 0
+    },
     {
       "git-tree": "4656585ffca17e789395f30f4ee6a301cff7f34e",
       "version-string": "0.12.3",