diff --git a/.github/workflows/codecov.yml b/.github/workflows/codecov.yml
index a1adf4d1..ac97a531 100644
--- a/.github/workflows/codecov.yml
+++ b/.github/workflows/codecov.yml
@@ -5,7 +5,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Build and run the unit tests
         run: |
           cp config/coverage-gcc.mk config.mk
diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 6a66412d..74e1633f 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -36,7 +36,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
diff --git a/.github/workflows/regression.yml b/.github/workflows/regression.yml
index ba58844a..9dc39af3 100644
--- a/.github/workflows/regression.yml
+++ b/.github/workflows/regression.yml
@@ -15,7 +15,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Build
       run: |
@@ -35,7 +35,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Build
       run: |
@@ -55,7 +55,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Build
       run: |
@@ -75,7 +75,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Build
       run: |
@@ -97,7 +97,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: Set up MPI
       uses: mpi4py/setup-mpi@v1
     - run: mpicc --version
@@ -114,7 +114,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: Set up MPI
       uses: mpi4py/setup-mpi@v1
     - run: mpicc --version
diff --git a/README.md b/README.md
index 1d1eea40..7ca018cf 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@
 
 A lattice Boltzmann code for complex fluids
 
-[![Build Status](https://travis-ci.com/ludwig-cf/ludwig.svg?branch=develop)](https://travis-ci.com/ludwig-cf/ludwig)
+![Build Status](https://github.com/ludwig-cf/ludwig/actions/workflows/regression.yaml/badge.svg?branch=fix-issue-304)
 [![CII Best Practices](https://bestpractices.coreinfrastructure.org/projects/1998/badge)](https://bestpractices.coreinfrastructure.org/projects/1998)