diff --git a/.github/workflows/integration_test.yaml b/.github/workflows/integration_test.yaml
index b1a4998a..64936605 100644
--- a/.github/workflows/integration_test.yaml
+++ b/.github/workflows/integration_test.yaml
@@ -16,3 +16,5 @@ jobs:
       extra-arguments: --localstack-address 172.17.0.1 -m "not (requires_secrets)"
       pre-run-script: localstack-installation.sh
       trivy-image-config: "trivy.yaml"
+      juju-channel: 3.1/stable
+      channel: 1.28-strict/stable
diff --git a/.github/workflows/integration_test_with_secrets.yaml b/.github/workflows/integration_test_with_secrets.yaml
index 10ae1000..6f47ac99 100644
--- a/.github/workflows/integration_test_with_secrets.yaml
+++ b/.github/workflows/integration_test_with_secrets.yaml
@@ -16,3 +16,5 @@ jobs:
       extra-arguments: --localstack-address 172.17.0.1 -m "requires_secrets"
       pre-run-script: localstack-installation.sh
       trivy-image-config: "trivy.yaml"
+      juju-channel: 3.1/stable
+      channel: 1.28-strict/stable
diff --git a/tests/integration/test_charm.py b/tests/integration/test_charm.py
index 7d7bc09e..05bd0130 100644
--- a/tests/integration/test_charm.py
+++ b/tests/integration/test_charm.py
@@ -48,10 +48,11 @@ async def test_prom_exporter_is_up(app: Application):
     assert discourse_unit
     cmd = f"/usr/bin/curl -m 30 http://localhost:{PROMETHEUS_PORT}/metrics"
     action = await discourse_unit.run(cmd, timeout=60)
-    code = action.results.get("Code")
-    stdout = action.results.get("Stdout")
-    stderr = action.results.get("Stderr")
-    assert code == "0", f"{cmd} failed ({code}): {stderr or stdout}"
+    await action.wait()
+    code = action.results.get("return-code")
+    stdout = action.results.get("stdout")
+    stderr = action.results.get("stderr")
+    assert code == 0, f"{cmd} failed ({code}): {stderr or stdout}"
 
 
 @pytest.mark.asyncio
@@ -96,7 +97,8 @@ async def test_s3_conf(app: Application, localstack_address: str, model: Model):
     action = await app.units[0].run(  # type: ignore
         f'echo "{s3_conf["ip_address"]}  {s3_conf["bucket"]}.s3.{s3_conf["domain"]}" >> /etc/hosts'
     )
-    assert action.results.get("Code") == "0", "Can't inject S3 IP in Discourse hosts"
+    await action.wait()
+    assert action.results.get("return-code") == 0, "Can't inject S3 IP in Discourse hosts"
 
     logger.info("Injected bucket subdomain in hosts, configuring settings for discourse")
     # Application does actually have attribute set_config
diff --git a/tox.ini b/tox.ini
index d87d4aed..2a18a46d 100644
--- a/tox.ini
+++ b/tox.ini
@@ -45,7 +45,7 @@ deps =
     flake8-docstrings-complete
     flake8-test-docs
     isort
-    juju<3.0
+    juju>=3.0
     mypy
     ops>=2.6.0
     ops-lib-pgsql
@@ -112,7 +112,7 @@ deps =
     boto3
     bs4
     cosl
-    juju<3.0
+    juju>=3.0
     pytest
     pytest-operator
     pytest-asyncio