diff --git a/package-lock.json b/package-lock.json
index 58ab1e6..6a6ed8f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -17,7 +17,7 @@
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@@ -507,13 +507,13 @@
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       "dev": true,
       "license": "MIT",
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-        "@pact-foundation/pact-core": "^18.1.0",
+        "@pact-foundation/pact-core": "^19.2.0",
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@@ -534,9 +534,9 @@
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@@ -555,25 +555,25 @@
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-        "@pact-foundation/pact-core-linux-x64-musl": "18.1.0",
-        "@pact-foundation/pact-core-windows-x64": "18.1.0"
+        "@pact-foundation/pact-core-darwin-arm64": "19.2.0",
+        "@pact-foundation/pact-core-darwin-x64": "19.2.0",
+        "@pact-foundation/pact-core-linux-arm64-glibc": "19.2.0",
+        "@pact-foundation/pact-core-linux-arm64-musl": "19.2.0",
+        "@pact-foundation/pact-core-linux-x64-glibc": "19.2.0",
+        "@pact-foundation/pact-core-linux-x64-musl": "19.2.0",
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@@ -585,9 +585,9 @@
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-      "resolved": "https://registry.npmjs.org/@pact-foundation/pact-core-darwin-x64/-/pact-core-darwin-x64-18.1.0.tgz",
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+      "resolved": "https://registry.npmjs.org/@pact-foundation/pact-core-darwin-x64/-/pact-core-darwin-x64-19.2.0.tgz",
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@@ -599,9 +599,9 @@
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-      "resolved": "https://registry.npmjs.org/@pact-foundation/pact-core-linux-arm64-glibc/-/pact-core-linux-arm64-glibc-18.1.0.tgz",
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+      "version": "19.2.0",
+      "resolved": "https://registry.npmjs.org/@pact-foundation/pact-core-linux-arm64-glibc/-/pact-core-linux-arm64-glibc-19.2.0.tgz",
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@@ -616,9 +616,9 @@
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-      "resolved": "https://registry.npmjs.org/@pact-foundation/pact-core-linux-arm64-musl/-/pact-core-linux-arm64-musl-18.1.0.tgz",
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+      "resolved": "https://registry.npmjs.org/@pact-foundation/pact-core-linux-arm64-musl/-/pact-core-linux-arm64-musl-19.2.0.tgz",
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@@ -633,9 +633,9 @@
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-      "resolved": "https://registry.npmjs.org/@pact-foundation/pact-core-linux-x64-glibc/-/pact-core-linux-x64-glibc-18.1.0.tgz",
-      "integrity": "sha512-rhR5iZS77Ie0ocJmtoTub82lyMQmjjn15UPhD5Tv1i2kYkbLCVPSYZpTrKak/OCDm5/AM0Lb7YqIZlOipMm/mA==",
+      "version": "19.2.0",
+      "resolved": "https://registry.npmjs.org/@pact-foundation/pact-core-linux-x64-glibc/-/pact-core-linux-x64-glibc-19.2.0.tgz",
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@@ -650,9 +650,9 @@
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@@ -667,9 +667,9 @@
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-      "resolved": "https://registry.npmjs.org/@pact-foundation/pact-core-windows-x64/-/pact-core-windows-x64-18.1.0.tgz",
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+      "version": "19.2.0",
+      "resolved": "https://registry.npmjs.org/@pact-foundation/pact-core-windows-x64/-/pact-core-windows-x64-19.2.0.tgz",
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@@ -3713,9 +3713,9 @@
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-      "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.13.7.tgz",
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+      "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.13.8.tgz",
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       "dev": true,
       "license": "MIT"
     },
diff --git a/package.json b/package.json
index bff8b48..c2c8044 100644
--- a/package.json
+++ b/package.json
@@ -30,7 +30,7 @@
   },
   "devDependencies": {
     "@biomejs/biome": "2.4.15",
-    "@pact-foundation/pact": "16.2.0",
+    "@pact-foundation/pact": "16.4.0",
     "@testing-library/jest-dom": "6.9.1",
     "@types/node": "25.6.2",
     "@types/react": "19.2.14",