diff --git a/.changeset/node-24-cli.md b/.changeset/node-24-cli.md
new file mode 100644
index 000000000..1e1d334f6
--- /dev/null
+++ b/.changeset/node-24-cli.md
@@ -0,0 +1,5 @@
+---
+"@celo/celocli": patch
+---
+
+Update minimum Node.js version requirement to >=20 and test on Node 24
diff --git a/.changeset/node-24-dev-utils.md b/.changeset/node-24-dev-utils.md
new file mode 100644
index 000000000..92ac10b24
--- /dev/null
+++ b/.changeset/node-24-dev-utils.md
@@ -0,0 +1,5 @@
+---
+"@celo/dev-utils": patch
+---
+
+Update minimum Node.js version requirement to >=20
diff --git a/.changeset/node-24-viem-account-ledger.md b/.changeset/node-24-viem-account-ledger.md
new file mode 100644
index 000000000..23ec1df87
--- /dev/null
+++ b/.changeset/node-24-viem-account-ledger.md
@@ -0,0 +1,5 @@
+---
+"@celo/viem-account-ledger": patch
+---
+
+Update minimum Node.js version requirement from >=18 to >=20
diff --git a/.changeset/sad-aliens-tap.md b/.changeset/sad-aliens-tap.md
new file mode 100644
index 000000000..5955c21bf
--- /dev/null
+++ b/.changeset/sad-aliens-tap.md
@@ -0,0 +1,5 @@
+---
+'@celo/wallet-base': patch
+---
+
+fix access of rawvalues
diff --git a/.github/actions/sync-workspace/action.yml b/.github/actions/sync-workspace/action.yml
index 2322b20ea..86b9ee0cb 100644
--- a/.github/actions/sync-workspace/action.yml
+++ b/.github/actions/sync-workspace/action.yml
@@ -13,14 +13,14 @@ runs:
   steps:
     - uses: actions/setup-node@v4
       with:
-        node-version: '20'
+        node-version: '24'
     - name: "enable corepack for yarn"
       run : sudo corepack enable yarn
       shell: bash
     # must call twice because of chicken and egg problem with yarn and node
     - uses: actions/setup-node@v4
       with:
-        node-version: '20'
+        node-version: '24'
         cache: 'yarn'
     - uses: actions/cache/restore@v3
       id: cache_node
diff --git a/.github/workflows/changeset-for-renovate.yml b/.github/workflows/changeset-for-renovate.yml
index a29ca0778..de09b8686 100644
--- a/.github/workflows/changeset-for-renovate.yml
+++ b/.github/workflows/changeset-for-renovate.yml
@@ -13,7 +13,7 @@ jobs:
     steps:
       - uses: actions/setup-node@v4
         with:
-          node-version: '20'
+          node-version: '24'
       - uses: actions/checkout@v4
       - name: "Run changesets-renovate"
         # when on a renovate branch which modified the package.json for a workspace this will  create a changeset for those changes
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ddefd00f1..f98c614da 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -52,14 +52,16 @@ jobs:
     steps:
       - uses: actions/setup-node@v4
         with:
-          node-version: '20'
+          node-version: '24'
       - name: 'enable corepack for yarn'
         run: sudo corepack enable yarn
+      - name: Install native build dependencies
+        run: sudo apt-get update && sudo apt-get install -y build-essential pkg-config libusb-1.0-0-dev libudev-dev
       - uses: actions/checkout@v4
       # must call twice because of chicken and egg problem with yarn and node
       - uses: actions/setup-node@v4
         with:
-          node-version: '20'
+          node-version: '24'
           cache: 'yarn'
       - name: Restore node cache
         uses: actions/cache@v4
@@ -452,7 +454,7 @@ jobs:
       - name: "Setup Node"
         uses: actions/setup-node@v4
         with:
-          node-version: 20  
+          node-version: 24  
       - name: Validate Team Config    
         uses: suzuki-shunsuke/github-action-renovate-config-validator@v1.0.1
         with:
diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index c763fadc4..66f0c6054 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -33,7 +33,7 @@ jobs:
     needs: release
     runs-on: ['self-hosted', 'org', 'ubuntu-22-04']
     container:
-      image: node:20-bullseye
+      image: node:24-bookworm
     outputs:
       result: '${{ steps.map.outputs.output }}'
     steps:
@@ -58,7 +58,7 @@ jobs:
     if: needs.release.outputs.published == 'true' && needs.prepare.outputs.result
     runs-on: ['self-hosted', 'org', 'ubuntu-22-04']
     container:
-      image: node:20-bullseye
+      image: node:24-bookworm
     strategy:
       fail-fast: false
       max-parallel: 12
diff --git a/.github/workflows/upload-celocli-executables.yml b/.github/workflows/upload-celocli-executables.yml
index f2b0f7270..8da09fcb2 100644
--- a/.github/workflows/upload-celocli-executables.yml
+++ b/.github/workflows/upload-celocli-executables.yml
@@ -33,7 +33,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: 20
+          node-version: 24
 
       - name: 'enable corepack for yarn'
         run: sudo corepack enable yarn
@@ -41,7 +41,7 @@ jobs:
       # must call twice because of chicken and egg problem with yarn and node
       - uses: actions/setup-node@v4
         with:
-          node-version: 20
+          node-version: 24
           cache: 'yarn'
 
       - name: Install Dependencies
@@ -111,17 +111,17 @@ jobs:
           ref: ${{ inputs.ref }}
           fetch-depth: 0
           fetch-tags: true
-      - name: Setup Node.js 20.x
+      - name: Setup Node.js 24.x
         uses: actions/setup-node@v4
         with:
-          node-version: 20
+          node-version: 24
       - name: 'enable corepack for yarn'
         run: corepack enable yarn
         shell: bash
       # must call twice because of chicken and egg problem with yarn and node
       - uses: actions/setup-node@v4
         with:
-          node-version: '20'
+          node-version: '24'
           cache: 'yarn'
       - name: Install Dependencies
         shell: bash
@@ -184,17 +184,17 @@ jobs:
           ref: main
           token: ${{ env.HOMEBREW_BREW_TOKEN }}
 
-      - name: Setup Node.js 20.x
+      - name: Setup Node.js 24.x
         uses: actions/setup-node@v4
         with:
-          node-version: 20
+          node-version: 24
       - name: 'enable corepack for yarn'
         run: sudo corepack enable yarn
         shell: bash
       # must call twice because of chicken and egg problem with yarn and node
       - uses: actions/setup-node@v4
         with:
-          node-version: '20'
+          node-version: '24'
           cache: 'yarn'
       - name: Install Dependencies
         shell: bash
diff --git a/.nvmrc b/.nvmrc
index 2bd5a0a98..a45fd52cc 100644
--- a/.nvmrc
+++ b/.nvmrc
@@ -1 +1 @@
-22
+24
diff --git a/package.json b/package.json
index 172d038f2..498129028 100644
--- a/package.json
+++ b/package.json
@@ -41,7 +41,7 @@
     "@biomejs/biome": "2.0.5",
     "@celo/typescript": "workspace:^",
     "@changesets/changelog-github": "^0.5.1",
-    "@types/node": "18.7.16",
+    "@types/node": "24.0.0",
     "colors": "1.4.0",
     "husky": "^8.0.0",
     "jest": "^29.7.0",
diff --git a/packages/cli/README.md b/packages/cli/README.md
index 974a6aecf..a830f3250 100644
--- a/packages/cli/README.md
+++ b/packages/cli/README.md
@@ -4,7 +4,7 @@ Tool for interacting with the Celo Protocol.
 
 ## Installation
 
-celocli is tested on node 20, although we find it works with warnings on 18 and 22 as well.
+celocli is tested on node 24.
 
 To install globally, run:
 
diff --git a/packages/cli/package.json b/packages/cli/package.json
index 2848e6a7f..f014eb467 100644
--- a/packages/cli/package.json
+++ b/packages/cli/package.json
@@ -23,7 +23,7 @@
     "celo-cli"
   ],
   "engines": {
-    "node": ">=18"
+    "node": ">=20"
   },
   "scripts": {
     "clean": "rm -f tsconfig.tsbuildinfo && rm -rf lib/ && yarn run --top-level tsc -b . --clean",
diff --git a/packages/cli/src/commands/validatorgroup/deregister.test.ts b/packages/cli/src/commands/validatorgroup/deregister.test.ts
index 286ccd236..44b541ad9 100644
--- a/packages/cli/src/commands/validatorgroup/deregister.test.ts
+++ b/packages/cli/src/commands/validatorgroup/deregister.test.ts
@@ -81,6 +81,15 @@ testWithAnvilL2('validatorgroup:deregister cmd', (web3: Web3) => {
     })
     describe('when not enough time has passed', () => {
       it('shows error that wait period is not over', async () => {
+        // Mock Date.now() to ensure we're before the wait period ends
+        // This prevents flakiness on CI where real time may have passed
+        const validators = await kit.contracts.getValidators()
+        const group = await validators.getValidatorGroup(groupAddress)
+        const groupRequirements = await validators.getGroupLockedGoldRequirements()
+        const waitPeriodEnd = group.membersUpdated + groupRequirements.duration.toNumber()
+        const mockNow = (waitPeriodEnd - 1000) * 1000
+        const timeSpy = jest.spyOn(global.Date, 'now').mockImplementation(() => mockNow)
+
         const logMock = jest.spyOn(console, 'log').mockImplementation()
         logMock.mockClear()
         await expect(
@@ -105,8 +114,8 @@ testWithAnvilL2('validatorgroup:deregister cmd', (web3: Web3) => {
             ],
           ]
         `)
-        const validators = await kit.contracts.getValidators()
         await expect(validators.isValidatorGroup(groupAddress)).resolves.toBe(true)
+        timeSpy.mockRestore()
       })
     })
     describe('when wait duration for unlocking is over', () => {
diff --git a/packages/cli/src/utils/checks.ts b/packages/cli/src/utils/checks.ts
index ca116f0c2..30ae83309 100644
--- a/packages/cli/src/utils/checks.ts
+++ b/packages/cli/src/utils/checks.ts
@@ -610,11 +610,11 @@ class CheckBuilder {
       this.withValidators(async (validators, _signer, account) => {
         const group = await getValidatorGroup(await this.getClient(), account)
         const [_, duration] = await validators.read.getGroupLockedGoldRequirements()
-        const waitPeriodEnd = group.membersUpdated.plus(bigintToBigNumber(duration)).toNumber()
-        const isDeregisterable = waitPeriodEnd < Date.now() / 1000
+        const waitPeriodEnd = group.membersUpdated.plus(bigintToBigNumber(duration))
+        const isDeregisterable = waitPeriodEnd.isLessThan(Date.now() / 1000)
         if (!isDeregisterable) {
           console.warn(
-            `Group will be able to be deregistered: ${new Date(waitPeriodEnd * 1000).toUTCString()}`
+            `Group will be able to be deregistered: ${new Date(waitPeriodEnd.multipliedBy(1000).toNumber()).toUTCString()}`
           )
         }
         return isDeregisterable
diff --git a/packages/cli/standalone.Dockerfile b/packages/cli/standalone.Dockerfile
index ab805a5bd..e06ad2c5d 100644
--- a/packages/cli/standalone.Dockerfile
+++ b/packages/cli/standalone.Dockerfile
@@ -3,7 +3,7 @@
 # Example build command (manual):
 #
 #   VERSION=x.y.z; docker build . --build-arg VERSION=$VERSION -t celocli-standalone:$VERSION
-FROM node:20-alpine
+FROM node:24-alpine
 LABEL org.opencontainers.image.authors="devops@clabs.co"
 
 # Install cli install dependencies.
diff --git a/packages/sdk/wallets/wallet-base/src/signing-utils.ts b/packages/sdk/wallets/wallet-base/src/signing-utils.ts
index 9812f3de0..5f65ebc17 100644
--- a/packages/sdk/wallets/wallet-base/src/signing-utils.ts
+++ b/packages/sdk/wallets/wallet-base/src/signing-utils.ts
@@ -442,9 +442,9 @@ export function extractSignature(rawTx: string) {
 
 function extractSignatureFromDecoded(rawValues: Uint8Array[]) {
   // signature is always (for the tx we support so far) the last three elements of the array in order v, r, s,
-  const v = rawValues.at(-3)
-  const r = rawValues.at(-2)
-  const s = rawValues.at(-1)
+  const v = rawValues[rawValues.length - 3]
+  const r = rawValues[rawValues.length - 2]
+  const s = rawValues[rawValues.length - 1]
   // https://github.com/wagmi-dev/viem/blob/993321689b3e2220976504e7e170fe47731297ce/src/utils/transaction/parseTransaction.ts#L281
   // Account.recover cannot handle canonicalized signatures
   // A canonicalized signature may have the first byte removed if its value is 0
diff --git a/packages/viem-account-ledger/package.json b/packages/viem-account-ledger/package.json
index 93da4a435..34c0fc591 100644
--- a/packages/viem-account-ledger/package.json
+++ b/packages/viem-account-ledger/package.json
@@ -62,6 +62,6 @@
     "vitest": "^3.1.3"
   },
   "engines": {
-    "node": ">=18"
+    "node": ">=20"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index 4f3ff808d..78d6a0b8c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -6634,6 +6634,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@types/node@npm:24.0.0":
+  version: 24.0.0
+  resolution: "@types/node@npm:24.0.0"
+  dependencies:
+    undici-types: "npm:~7.8.0"
+  checksum: 5e7b5184c67964cb4fa74f9fcc1f936e101d9858c9559cea75ee50558ae100f37bd4eef807d2d7fbdc413f191f74a6066f57a4d2acbd4df64f4a76b933302b52
+  languageName: node
+  linkType: hard
+
 "@types/node@npm:^12.12.6, @types/node@npm:^12.7.1":
   version: 12.20.55
   resolution: "@types/node@npm:12.20.55"
@@ -8181,7 +8190,7 @@ __metadata:
     "@celo/typescript": "workspace:^"
     "@changesets/changelog-github": "npm:^0.5.1"
     "@changesets/cli": "npm:^2.29.5"
-    "@types/node": "npm:18.7.16"
+    "@types/node": "npm:24.0.0"
     colors: "npm:1.4.0"
     husky: "npm:^8.0.0"
     jest: "npm:^29.7.0"
@@ -17338,6 +17347,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"undici-types@npm:~7.8.0":
+  version: 7.8.0
+  resolution: "undici-types@npm:7.8.0"
+  checksum: fcff3fbab234f067fbd69e374ee2c198ba74c364ceaf6d93db7ca267e784457b5518cd01d0d2329b075f412574205ea3172a9a675facb49b4c9efb7141cd80b7
+  languageName: node
+  linkType: hard
+
 "unique-filename@npm:^3.0.0":
   version: 3.0.0
   resolution: "unique-filename@npm:3.0.0"