diff --git a/.github/workflows/go_dvoting_test.yml b/.github/workflows/go_dvoting_test.yml
index f98569577..19acabb77 100644
--- a/.github/workflows/go_dvoting_test.yml
+++ b/.github/workflows/go_dvoting_test.yml
@@ -12,10 +12,10 @@ jobs:
     name: Scenario
     runs-on: ubuntu-latest
     steps:
-      - name: Set up Go ^1.17
-        uses: actions/setup-go@v2
+      - name: Use Go 1.20
+        uses: actions/setup-go@v4
         with:
-          go-version: ^1.17
+          go-version: '1.20'
 
       - name: Install crypto util from Dela
         run: |
diff --git a/.github/workflows/go_integration_tests.yml b/.github/workflows/go_integration_tests.yml
index 5b0cfc9dd..e3dc9fca2 100644
--- a/.github/workflows/go_integration_tests.yml
+++ b/.github/workflows/go_integration_tests.yml
@@ -11,10 +11,10 @@ jobs:
     name: Integration test
     runs-on: ubuntu-latest
     steps:
-      - name: Set up Go ^1.17
-        uses: actions/setup-go@v2
+      - name: Use Go 1.20
+        uses: actions/setup-go@v4
         with:
-          go-version: ^1.17
+          go-version: '1.20'
 
       - name: Check out code into the Go module directory
         uses: actions/checkout@v2
@@ -25,10 +25,10 @@ jobs:
     name: Test bad vote
     runs-on: ubuntu-latest
     steps:
-      - name: Set up Go ^1.17
-        uses: actions/setup-go@v2
+      - name: Use Go 1.20
+        uses: actions/setup-go@v4
         with:
-          go-version: ^1.17
+          go-version: '1.20'
 
       - name: Check out code into the Go module directory
         uses: actions/checkout@v2
@@ -39,10 +39,10 @@ jobs:
     name: Test crash
     runs-on: ubuntu-latest
     steps:
-      - name: Set up Go ^1.17
-        uses: actions/setup-go@v2
+      - name: Use Go 1.20
+        uses: actions/setup-go@v4
         with:
-          go-version: ^1.17
+          go-version: '1.20'
 
       - name: Check out code into the Go module directory
         uses: actions/checkout@v2
@@ -53,10 +53,10 @@ jobs:
     name: Test revote
     runs-on: ubuntu-latest
     steps:
-      - name: Set up Go ^1.17
-        uses: actions/setup-go@v2
+      - name: Use Go 1.20
+        uses: actions/setup-go@v4
         with:
-          go-version: ^1.17
+          go-version: '1.20'
 
       - name: Check out code into the Go module directory
         uses: actions/checkout@v2
diff --git a/.github/workflows/go_scenario_test.yml b/.github/workflows/go_scenario_test.yml
index c2e609697..c6f274417 100644
--- a/.github/workflows/go_scenario_test.yml
+++ b/.github/workflows/go_scenario_test.yml
@@ -11,10 +11,10 @@ jobs:
     name: Tests
     runs-on: ubuntu-latest
     steps:
-      - name: Set up Go ^1.17
-        uses: actions/setup-go@v2
+      - name: Use Go 1.20
+        uses: actions/setup-go@v4
         with:
-          go-version: ^1.17
+          go-version: '1.20'
 
       - name: Install crypto util from Dela
         run: |
diff --git a/.github/workflows/go_test.yml b/.github/workflows/go_test.yml
index dba5a8188..302364b03 100644
--- a/.github/workflows/go_test.yml
+++ b/.github/workflows/go_test.yml
@@ -10,10 +10,10 @@ jobs:
     name: Tests
     runs-on: ubuntu-latest
     steps:
-      - name: Use Go >= 1.19
-        uses: actions/setup-go@v3
+      - name: Use Go 1.20
+        uses: actions/setup-go@v4
         with:
-          go-version: '>=1.19'
+          go-version: '1.20'
         id: go
 
       - name: Check out code into the Go module directory
diff --git a/.github/workflows/releases.yml b/.github/workflows/releases.yml
index a4b775e5f..84d119f27 100644
--- a/.github/workflows/releases.yml
+++ b/.github/workflows/releases.yml
@@ -13,10 +13,10 @@ jobs:
       - name: checkout
         uses: actions/checkout@v3
 
-      - name: Use go
-        uses: actions/setup-go@v3
+      - name: Use Go 1.20
+        uses: actions/setup-go@v4
         with:
-          go-version: '>=1.18'
+          go-version: '1.20'
 
       - name: Install fpm
         run: |
diff --git a/go.mod b/go.mod
index 01a0b65dc..ad9c4034c 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/c4dt/d-voting
 
-go 1.19
+go 1.20
 
 require (
 	github.com/gorilla/mux v1.8.0
diff --git a/integration/integration_test.go b/integration/integration_test.go
index b6bd9fcf1..4833a3663 100644
--- a/integration/integration_test.go
+++ b/integration/integration_test.go
@@ -37,8 +37,6 @@ func getIntegrationTest(numNodes, numVotes int) func(*testing.T) {
 		adminID := "first admin"
 
 		// ##### SETUP ENV #####
-		// make tests reproducible
-		rand.Seed(1)
 
 		delaPkg.Logger = delaPkg.Logger.Level(zerolog.WarnLevel)
 
@@ -178,8 +176,6 @@ func getIntegrationTestCrash(numNodes, numVotes, failingNodes int) func(*testing
 		adminID := "first admin"
 
 		// ##### SETUP ENV #####
-		// make tests reproducible
-		rand.Seed(1)
 
 		delaPkg.Logger = delaPkg.Logger.Level(zerolog.WarnLevel)
 
@@ -328,8 +324,6 @@ func getIntegrationBenchmark(numNodes, numVotes int) func(*testing.B) {
 		adminID := "first admin"
 
 		// ##### SETUP ENV #####
-		// make tests reproducible
-		rand.Seed(1)
 
 		delaPkg.Logger = delaPkg.Logger.Level(zerolog.WarnLevel)
 
diff --git a/integration/performance_test.go b/integration/performance_test.go
index aaeb38a51..7a4233e55 100644
--- a/integration/performance_test.go
+++ b/integration/performance_test.go
@@ -4,7 +4,6 @@ import (
 	"crypto/sha256"
 	"encoding/base64"
 	"fmt"
-	"math/rand"
 	"os"
 	"strconv"
 	"strings"
@@ -31,8 +30,6 @@ func BenchmarkIntegration_CustomVotesScenario(b *testing.B) {
 	adminID := "I am an admin"
 
 	// ##### SETUP ENV #####
-	// make tests reproducible
-	rand.Seed(1)
 
 	dirPath, err := os.MkdirTemp(os.TempDir(), "d-voting-three-votes")
 	require.NoError(b, err)
diff --git a/integration/scenario_test.go b/integration/scenario_test.go
index d2c636689..cd1473b32 100644
--- a/integration/scenario_test.go
+++ b/integration/scenario_test.go
@@ -72,7 +72,6 @@ func getScenarioTest(numNodes int, numVotes int, numForm int) func(*testing.T) {
 
 func startFormProcess(wg *sync.WaitGroup, numNodes, numVotes, numSec int, proxyArray []string, t *testing.T, numForm int, testType testType) {
 	defer wg.Done()
-	rand.Seed(0)
 
 	const contentType = "application/json"
 	secretkeyBuf, err := hex.DecodeString("28912721dfd507e198b31602fb67824856eb5a674c021d49fdccbe52f0234409")
diff --git a/integration/votes_test.go b/integration/votes_test.go
index 53eb765af..207798f18 100644
--- a/integration/votes_test.go
+++ b/integration/votes_test.go
@@ -2,7 +2,6 @@ package integration
 
 import (
 	"fmt"
-	"math/rand"
 	"os"
 	"strconv"
 
@@ -34,8 +33,6 @@ func getIntegrationTestBadVote(numNodes, numVotes, numBadVotes int) func(*testin
 		adminID := "first admin"
 
 		// ##### SETUP ENV #####
-		// make tests reproducible
-		rand.Seed(1)
 
 		delaPkg.Logger = delaPkg.Logger.Level(zerolog.WarnLevel)
 
@@ -174,8 +171,6 @@ func getIntegrationTestRevote(numNodes, numVotes, numRevotes int) func(*testing.
 		adminID := "first admin"
 
 		// ##### SETUP ENV #####
-		// make tests reproducible
-		rand.Seed(1)
 
 		delaPkg.Logger = delaPkg.Logger.Level(zerolog.WarnLevel)