diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 2e0465ba1eb1b350e105a67703bd51ce13f544ae..748db808de69a9d65c87be0b5f5abe7e63fc3412 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -30,7 +30,7 @@ variables:
   RUSTY_CACHIER_COMPRESSION_METHOD: zstd
   NEXTEST_FAILURE_OUTPUT: immediate-final
   NEXTEST_SUCCESS_OUTPUT: final
-  ZOMBIENET_IMAGE: "docker.io/paritytech/zombienet:v1.3.65"
+  ZOMBIENET_IMAGE: "docker.io/paritytech/zombienet:v1.3.67"
   DOCKER_IMAGES_VERSION: "${CI_COMMIT_REF_NAME}-${CI_COMMIT_SHORT_SHA}"
 
 default:
diff --git a/.gitlab/pipeline/zombienet/polkadot.yml b/.gitlab/pipeline/zombienet/polkadot.yml
index 87b821742c675b39294c8bfccead1058cf3f9e33..349807a610d414e5eaacb610d40419cbd390af71 100644
--- a/.gitlab/pipeline/zombienet/polkadot.yml
+++ b/.gitlab/pipeline/zombienet/polkadot.yml
@@ -9,6 +9,7 @@
     - export ZOMBIENET_INTEGRATION_TEST_IMAGE="${POLKADOT_IMAGE}":${PIPELINE_IMAGE_TAG}
     - export ZOMBIENET_INTEGRATION_TEST_SECONDARY_IMAGE="docker.io/parity/polkadot:${BUILD_RELEASE_VERSION}"
     - export COL_IMAGE="${COLANDER_IMAGE}":${PIPELINE_IMAGE_TAG}
+    - export CUMULUS_IMAGE="docker.io/paritypr/polkadot-parachain-debug:${DOCKER_IMAGES_VERSION}"
     - export MALUS_IMAGE="${MALUS_IMAGE}":${PIPELINE_IMAGE_TAG}
     - echo "Zombienet Tests Config"
     - echo "gh-dir ${GH_DIR}"
@@ -16,6 +17,7 @@
     - echo "polkadot image ${ZOMBIENET_INTEGRATION_TEST_IMAGE}"
     - echo "polkadot secondary image ${ZOMBIENET_INTEGRATION_TEST_SECONDARY_IMAGE}"
     - echo "colander image ${COL_IMAGE}"
+    - echo "cumulus image ${CUMULUS_IMAGE}"
     - echo "malus image ${MALUS_IMAGE}"
   stage: zombienet
   image: "${ZOMBIENET_IMAGE}"
@@ -28,6 +30,8 @@
       artifacts: true
     - job: build-push-image-colander
       artifacts: true
+    - job: build-push-image-polkadot-parachain-debug
+      artifacts: true
   extends:
     - .kubernetes-env
     - .zombienet-refs
diff --git a/docker/dockerfiles/polkadot-parachain/polkadot-parachain-debug_unsigned_injected.Dockerfile b/docker/dockerfiles/polkadot-parachain/polkadot-parachain-debug_unsigned_injected.Dockerfile
index 7a2202d9c52bb98200318805ef44dcb276c2078b..75cc2b9e629de4b9d8bf99e2a7bc866d3160a95a 100644
--- a/docker/dockerfiles/polkadot-parachain/polkadot-parachain-debug_unsigned_injected.Dockerfile
+++ b/docker/dockerfiles/polkadot-parachain/polkadot-parachain-debug_unsigned_injected.Dockerfile
@@ -28,7 +28,7 @@ RUN apt-get update && \
 	apt-get clean && \
 	find /var/lib/apt/lists/ -type f -not -name lock -delete; \
 	# add user and link ~/.local/share/polkadot-parachain to /data
-	useradd -m -u 10000 -U -s /bin/sh -d /polkadot-parachain polkadot-parachain && \
+	useradd -m -u 1000 -U -s /bin/sh -d /polkadot-parachain polkadot-parachain && \
 	mkdir -p /data /polkadot-parachain/.local/share && \
 	chown -R polkadot-parachain:polkadot-parachain /data && \
 	ln -s /data /polkadot-parachain/.local/share/polkadot-parachain && \
diff --git a/polkadot/zombienet_tests/functional/0005-parachains-disputes-past-session.toml b/polkadot/zombienet_tests/functional/0005-parachains-disputes-past-session.toml
index 50c465950f727c566e95389af8c9b42ca942f242..25d922bb6827cbf8e129a07f64b537391bc72d7a 100644
--- a/polkadot/zombienet_tests/functional/0005-parachains-disputes-past-session.toml
+++ b/polkadot/zombienet_tests/functional/0005-parachains-disputes-past-session.toml
@@ -5,7 +5,7 @@ bootnode = true
 [relaychain.genesis.runtime.configuration.config]
   max_validators_per_core = 1
   needed_approvals = 2
-  group_rotation_frequency = 3
+  group_rotation_frequency = 2
 
 [relaychain]
 default_image = "{{ZOMBIENET_INTEGRATION_TEST_IMAGE}}"
@@ -39,8 +39,7 @@ id = 1000
 cumulus_based = true
 
   [parachains.collator]
-  name = "collator"
+  name = "alice"
   command = "polkadot-parachain"
-  image = "docker.io/parity/polkadot-parachain:latest"
-  # image = "{{COL_IMAGE}}"
+  image = "{{CUMULUS_IMAGE}}"
   args = ["-lparachain=debug"]
diff --git a/polkadot/zombienet_tests/functional/0005-parachains-disputes-past-session.zndsl b/polkadot/zombienet_tests/functional/0005-parachains-disputes-past-session.zndsl
index bc3674f4f53ddef9ef87d1a2f301ed7a49d7161d..a3f1f0669ac9e85cea978ac2b62991cb3a092297 100644
--- a/polkadot/zombienet_tests/functional/0005-parachains-disputes-past-session.zndsl
+++ b/polkadot/zombienet_tests/functional/0005-parachains-disputes-past-session.zndsl
@@ -21,18 +21,18 @@ malus-validator: resume
 malus-validator: log line matches "Suggesting malicious candidate" within 200 seconds
 
 # Pause first flaky node
-# Availability and finality will continue with 3/4 nodes online (incl. malus)
+# Availability will continue with 3/4 nodes online (incl. malus)
 honest-flaky-validator-0: pause
 
 # Wait for the dispute
-honest-flaky-validator-1: reports parachain_candidate_disputes_total is at least 1 within 40 seconds
+honest-flaky-validator-1: reports parachain_candidate_disputes_total is at least 1 within 60 seconds
 
 # Pause second flaky node so that we do not revert blocks due to f+1 invalid votes
 # Availability and finality will stop
 honest-flaky-validator-1: pause
 
 # Wait for 1 full session to pass after the last unconcluded dispute.
-sleep 120 seconds
+sleep 110 seconds
 
 # Now resume flaky validators
 honest-flaky-validator: resume