diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index 32c617a4..d0a5197d 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -70,7 +70,7 @@ jobs:
       - name: Smoke test - zome_call_single_value
         run: |
           # Start a sandbox conductor and run it in the background
-          nix develop .#ci -c bash -c "./scripts/run.sh"
+          nix develop .#ci -c bash -c "./scripts/run.sh" &
           
           # TODO using `localhost` is resolving to an IPv6 address, but why is that giving a connection refused?
           # Run the scenario for 5 seconds
@@ -81,7 +81,7 @@ jobs:
       - name: Smoke test - single_write_many_read
         run: |
           # Start a sandbox conductor and run it in the background
-          nix develop .#ci -c bash -c "./scripts/run.sh"
+          nix develop .#ci -c bash -c "./scripts/run.sh" &
           
           # Run the scenario for 5 seconds
           RUST_LOG=info nix run .#single_write_many_read -- --connection-string ws://localhost:8888 --duration 5 --no-progress
@@ -91,7 +91,7 @@ jobs:
       - name: Smoke test - dht_sync_lag
         run: |
           # Start a sandbox conductor and run it in the background
-          nix develop .#ci -c bash -c "./scripts/run.sh"
+          nix develop .#ci -c bash -c "./scripts/run.sh" &
 
           # Run the scenario for 5 seconds
           RUST_LOG=info nix run .#dht_sync_lag -- --connection-string ws://localhost:8888 --agents 2 --behaviour write:1 --behaviour record_lag:1 --duration 5 --no-progress
@@ -121,7 +121,7 @@ jobs:
       - name: Smoke test - write_read
         run: |
           # Start a sandbox conductor and run it in the background
-          nix develop .#ci -c bash -c "./scripts/run.sh"
+          nix develop .#ci -c bash -c "./scripts/run.sh" &
 
           # Run the scenario for 5 seconds
           RUST_LOG=info nix run .#write_read -- --connection-string ws://localhost:8888 --duration 5 --no-progress
@@ -131,7 +131,7 @@ jobs:
       - name: Smoke test - write_query
         run: |
           # Start a sandbox conductor and run it in the background
-          nix develop .#ci -c bash -c "./scripts/run.sh"
+          nix develop .#ci -c bash -c "./scripts/run.sh" &
 
           # Run the scenario for 5 seconds
           RUST_LOG=info nix run .#write_query -- --connection-string ws://localhost:8888 --duration 5 --no-progress
@@ -141,7 +141,7 @@ jobs:
       - name: Smoke test - local_signals
         run: |
           # Start a sandbox conductor and run it in the background
-          nix develop .#ci -c bash -c "./scripts/run.sh"
+          nix develop .#ci -c bash -c "./scripts/run.sh" &
 
           # Run the scenario for 5 seconds
           RUST_LOG=info nix run .#local_signals -- --connection-string ws://localhost:8888 --duration 5 --no-progress
@@ -151,7 +151,7 @@ jobs:
       - name: Smoke test - write_validated
         run: |
           # Start a sandbox conductor and run it in the background
-          nix develop .#ci -c bash -c "./scripts/run.sh"
+          nix develop .#ci -c bash -c "./scripts/run.sh" &
 
           # Run the scenario for 5 seconds
           RUST_LOG=info nix run .#write_validated -- --connection-string ws://localhost:8888 --duration 5 --no-progress