diff --git a/.disvulncheck.yml b/.disvulncheck.yml
new file mode 100644
index 0000000..6596026
--- /dev/null
+++ b/.disvulncheck.yml
@@ -0,0 +1,2 @@
+---
+toolchain: go1.24.7
\ No newline at end of file
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1b8725f..88356bb 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,7 +12,7 @@ concurrency:
 
 # Single source of truth for tool versions
 env:
-  GO_VERSION: '1.25'
+  GO_VERSION: '1.24.7'
 
 jobs:
   dis-redirect-proxy-audit:
@@ -25,12 +25,10 @@ jobs:
         with:
           go-version: ${{ env.GO_VERSION }}
           cache: true
-      - name: Generate Go Module List
-        run:  go list -json -m all > go.list
-      - name: Run audit check with Nancy
-        uses: sonatype-nexus-community/nancy-github-action@main
-        with:
-          nancyVersion: "v1.0.48"
+      - name: Install dis-vulncheck
+        run: go install github.com/ONSdigital/dis-vulncheck@latest
+      - name: Run dis-vulncheck
+        run: make audit
 
   dis-redirect-proxy-build:
     runs-on: ubuntu-latest
diff --git a/Dockerfile.local b/Dockerfile.local
index 07a5883..b9f8dfa 100644
--- a/Dockerfile.local
+++ b/Dockerfile.local
@@ -1,4 +1,4 @@
-FROM golang:1.25 AS build
+FROM golang:1.24 AS build
 
 ENV GOCACHE=/go/.go/cache GOPATH=/go/.go/path TZ=Europe/London
 
diff --git a/Makefile b/Makefile
index 24455eb..77872f1 100644
--- a/Makefile
+++ b/Makefile
@@ -17,7 +17,7 @@ all: delimiter-AUDIT audit delimiter-LINTERS lint delimiter-UNIT-TESTS test deli
 
 .PHONY: audit
 audit: ## Runs checks for security vulnerabilities on dependencies (including transient ones)
-	go list -json -m all | nancy sleuth
+	dis-vulncheck
 
 .PHONY: build
 build: ## Builds binary of application code and stores in bin directory as dis-redirect-proxy
diff --git a/README.md b/README.md
index 5403ac1..c90bfda 100644
--- a/README.md
+++ b/README.md
@@ -11,6 +11,14 @@ A Go Service to redirect legacy URLs requested by users
 
 * No further dependencies other than those defined in `go.mod`
 
+### Tools
+
+To run some of our tests you will need additional tooling:
+
+#### Audit
+
+We use `dis-vulncheck` for auditing, which you will [need to install](https://github.com/ONSdigital/dis-vulncheck).
+
 ### Configuration
 
 | Environment variable         | Default                  | Description                                                                                                        |
diff --git a/go.mod b/go.mod
index 8817912..480845e 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/ONSdigital/dis-redirect-proxy
 
-go 1.25
+go 1.24.0
 
 require (
 	github.com/ONSdigital/dis-redis v0.3.0
@@ -37,7 +37,7 @@ require (
 	github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
 	github.com/fatih/color v1.18.0 // indirect
 	github.com/felixge/httpsnoop v1.0.4 // indirect
-	github.com/go-json-experiment/json v0.0.0-20250910080747-cc2cfa0554c3 // indirect
+	github.com/go-json-experiment/json v0.0.0-20250813233538-9b1f9ea2e11b // indirect
 	github.com/go-logr/logr v1.4.3 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/gobwas/httphead v0.1.0 // indirect
diff --git a/go.sum b/go.sum
index b36323c..8fd2d55 100644
--- a/go.sum
+++ b/go.sum
@@ -51,8 +51,8 @@ github.com/fatih/color v1.18.0 h1:S8gINlzdQ840/4pfAwic/ZE0djQEH3wM94VfqLTZcOM=
 github.com/fatih/color v1.18.0/go.mod h1:4FelSpRwEGDpQ12mAdzqdOukCy4u8WUtOY6lkT/6HfU=
 github.com/felixge/httpsnoop v1.0.4 h1:NFTV2Zj1bL4mc9sqWACXbQFVBBg2W3GPvqp8/ESS2Wg=
 github.com/felixge/httpsnoop v1.0.4/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSwevea8zH2U=
-github.com/go-json-experiment/json v0.0.0-20250910080747-cc2cfa0554c3 h1:02WINGfSX5w0Mn+F28UyRoSt9uvMhKguwWMlOAh6U/0=
-github.com/go-json-experiment/json v0.0.0-20250910080747-cc2cfa0554c3/go.mod h1:uNVvRXArCGbZ508SxYYTC5v1JWoz2voff5pm25jU1Ok=
+github.com/go-json-experiment/json v0.0.0-20250813233538-9b1f9ea2e11b h1:6Q4zRHXS/YLOl9Ng1b1OOOBWMidAQZR3Gel0UKPC/KU=
+github.com/go-json-experiment/json v0.0.0-20250813233538-9b1f9ea2e11b/go.mod h1:TiCD2a1pcmjd7YnhGH0f/zKNcCD06B029pHhzV23c2M=
 github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
 github.com/go-logr/logr v1.4.3 h1:CjnDlHq8ikf6E492q6eKboGOC0T8CDaOvkHCIg8idEI=
 github.com/go-logr/logr v1.4.3/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=