diff --git a/client/Makefile b/client/Makefile
index b8980fba7..346277f12 100644
--- a/client/Makefile
+++ b/client/Makefile
@@ -56,8 +56,8 @@ TESTOPTS ?= -v --cov-config .coveragerc --cov-report html --cov-report term-miss
 RANDOM_SEED ?= $(shell bash -c 'echo $$RANDOM')
 
 .PHONY: test
-test: ## Run the application tests in parallel (for rapid development)
-	@TEST_CMD="poetry run pytest -v -n 4 --ignore=$(FTESTS) --ignore=$(ITESTS) $(TESTOPTS) $(TESTS)" ; \
+test: ## Run the application tests (for rapid development)
+	@TEST_CMD="poetry run pytest -v --ignore=$(FTESTS) --ignore=$(ITESTS) $(TESTOPTS) $(TESTS)" ; \
 		source scripts/setup-tmp-directories.sh; \
 		if command -v xvfb-run > /dev/null; then \
 		xvfb-run -a $$TEST_CMD ; else \
@@ -72,7 +72,7 @@ test-random: ## Run the application tests in random order
 
 .PHONY: test-integration
 test-integration: ## Run the integration tests
-	@TEST_CMD="poetry run pytest -v -n 4 $(ITESTS)" ; \
+	@TEST_CMD="poetry run pytest -v $(ITESTS)" ; \
 		if command -v xvfb-run > /dev/null; then \
 		xvfb-run -a $$TEST_CMD ; else \
 		$$TEST_CMD ; fi
diff --git a/client/poetry.lock b/client/poetry.lock
index b7c299688..cb9995373 100644
--- a/client/poetry.lock
+++ b/client/poetry.lock
@@ -1,4 +1,4 @@
-# This file is automatically @generated by Poetry 1.7.1 and should not be changed by hand.
+# This file is automatically @generated by Poetry 1.6.1 and should not be changed by hand.
 
 [[package]]
 name = "alembic"
@@ -282,20 +282,6 @@ files = [
 [package.extras]
 test = ["pytest (>=6)"]
 
-[[package]]
-name = "execnet"
-version = "2.0.2"
-description = "execnet: rapid multi-Python deployment"
-optional = false
-python-versions = ">=3.7"
-files = [
-    {file = "execnet-2.0.2-py3-none-any.whl", hash = "sha256:88256416ae766bc9e8895c76a87928c0012183da3cc4fc18016e6f050e025f41"},
-    {file = "execnet-2.0.2.tar.gz", hash = "sha256:cc59bc4423742fd71ad227122eb0dd44db51efb3dc4095b45ac9a08c770096af"},
-]
-
-[package.extras]
-testing = ["hatch", "pre-commit", "pytest", "tox"]
-
 [[package]]
 name = "face"
 version = "22.0.0"
@@ -1429,26 +1415,6 @@ files = [
 pytest = ">=3.6.0"
 vcrpy = "*"
 
-[[package]]
-name = "pytest-xdist"
-version = "3.3.1"
-description = "pytest xdist plugin for distributed testing, most importantly across multiple CPUs"
-optional = false
-python-versions = ">=3.7"
-files = [
-    {file = "pytest-xdist-3.3.1.tar.gz", hash = "sha256:d5ee0520eb1b7bcca50a60a518ab7a7707992812c578198f8b44fdfac78e8c93"},
-    {file = "pytest_xdist-3.3.1-py3-none-any.whl", hash = "sha256:ff9daa7793569e6a68544850fd3927cd257cc03a7ef76c95e86915355e82b5f2"},
-]
-
-[package.dependencies]
-execnet = ">=1.1"
-pytest = ">=6.2.0"
-
-[package.extras]
-psutil = ["psutil (>=3.0)"]
-setproctitle = ["setproctitle"]
-testing = ["filelock"]
-
 [[package]]
 name = "python-dateutil"
 version = "2.7.5"
@@ -2218,4 +2184,4 @@ multidict = ">=4.0"
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.9"
-content-hash = "362d5031e5815e0115adfebdd42ab888cce3e760241f27484634ab47a0c67f35"
+content-hash = "3f1aa5fc1f7b2b0d72b56a6e5a505ab68294a1b4d82562ecb8e12fe67dabe2e5"
diff --git a/client/pyproject.toml b/client/pyproject.toml
index 8ff5884e6..75908eff0 100644
--- a/client/pyproject.toml
+++ b/client/pyproject.toml
@@ -41,7 +41,6 @@ pytest-mock = "*"
 pytest-qt = "^4.2.0"
 pytest-random-order = "*"
 pytest-vcr = "*"
-pytest-xdist = "^3.0.2"
 semgrep = "*"
 translate-toolkit = "*"
 types-polib = "*"