diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index dd64f6fe4..464588744 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,6 +1,6 @@
 {
   "+1": "0.0.0",
-  "backend/graph-proxy": "0.1.17",
+  "backend/graph-proxy": "0.1.18",
   "+2": "0.0.0",
   "backend/sessionspaces": "0.1.3",
   "+3": "0.0.0",
diff --git a/backend/graph-proxy/CHANGELOG.md b/backend/graph-proxy/CHANGELOG.md
index a6c760b87..d5b05da01 100644
--- a/backend/graph-proxy/CHANGELOG.md
+++ b/backend/graph-proxy/CHANGELOG.md
@@ -1,5 +1,17 @@
 # Changelog
 
+## [0.1.18](https://github.com/DiamondLightSource/workflows/compare/graph-proxy@v0.1.17...graph-proxy@v0.1.18) (2026-04-15)
+
+
+### Features
+
+* graph-proxy requires authn for all querys/mutations ([ef8c5ea](https://github.com/DiamondLightSource/workflows/commit/ef8c5ea7d2b69cd789f518492c6ec106c3e6a002))
+
+
+### Bug Fixes
+
+* **graph-proxy:** stop casting of workflow parameters to strings ([3f9ddbd](https://github.com/DiamondLightSource/workflows/commit/3f9ddbd32f9d2d9e0fe56ab64e4a8e0b99c18e9a))
+
 ## [0.1.17](https://github.com/DiamondLightSource/workflows/compare/graph-proxy@v0.1.16...graph-proxy@v0.1.17) (2026-02-16)
 
 
diff --git a/backend/graph-proxy/Cargo.toml b/backend/graph-proxy/Cargo.toml
index 5d14d15a1..e56734045 100644
--- a/backend/graph-proxy/Cargo.toml
+++ b/backend/graph-proxy/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "graph-proxy"
-version = "0.1.17"
+version = "0.1.18"
 edition = "2021"
 exclude = ["test-assets/"]
 license-file = "../../LICENSE"
diff --git a/charts/graph-proxy/Chart.yaml b/charts/graph-proxy/Chart.yaml
index 0a67885a4..598ccaefb 100644
--- a/charts/graph-proxy/Chart.yaml
+++ b/charts/graph-proxy/Chart.yaml
@@ -3,7 +3,7 @@ name: graph-proxy
 description: A GraphQL proxy for the Argo Workflows Server
 type: application
 version: 0.2.34
-appVersion: 0.1.17
+appVersion: 0.1.18
 dependencies:
   - name: common
     version: 2.23.0