diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2ac4c88f..a54d1e3c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@
 
 **Fixed bugs:**
 
+- Fix Python 3.9 incompatibility by updating plistlib [\#909](https://github.com/jrnl-org/jrnl/pull/909) ([MinchinWeb](https://github.com/MinchinWeb))
 - Fix typo in YAML exporter \("stared" -\> "starred"\) [\#907](https://github.com/jrnl-org/jrnl/pull/907) ([MinchinWeb](https://github.com/MinchinWeb))
 
 **Build:**
diff --git a/features/regression.feature b/features/regression.feature
index 5aa1db06..4dc35b5a 100644
--- a/features/regression.feature
+++ b/features/regression.feature
@@ -122,3 +122,10 @@ Feature: Zapped bugs should stay dead.
         Then the output should contain "This thing happened yesterday"
         Then the output should contain "Adding an entry right now."
         Then the output should not contain "A future entry."
+
+    @deployment_tests
+    Scenario: Version numbers should stay in sync
+        Given we use the config "basic.yaml"
+        When we run "jrnl --version"
+        Then we should get no error
+        Then the output should contain pyproject.toml version
diff --git a/features/steps/core.py b/features/steps/core.py
index 36b6573a..6eebd575 100644
--- a/features/steps/core.py
+++ b/features/steps/core.py
@@ -19,6 +19,8 @@ import keyring
 import tzlocal
 import shlex
 import sys
+from pathlib import Path
+import toml
 
 consts = pdt.Constants(usePyICU=False)
 consts.DOWParseStyle = -1  # Prefers past weekdays
@@ -207,6 +209,15 @@ def check_output_time_inline(context, text):
     assert output_date in out, output_date
 
 
+@then("the output should contain pyproject.toml version")
+def check_output_version_inline(context):
+    out = context.stdout_capture.getvalue()
+    pyproject = (Path(__file__) / ".." / ".." / ".." / "pyproject.toml").resolve()
+    pyproject_contents = toml.load(pyproject)
+    pyproject_version = pyproject_contents["tool"]["poetry"]["version"]
+    assert pyproject_version in out, pyproject_version
+
+
 @then("the output should contain")
 @then('the output should contain "{text}"')
 @then('the output should contain "{text}" or "{text2}"')
diff --git a/poetry.lock b/poetry.lock
index 65356424..88eb5b3f 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -522,7 +522,7 @@ docs = ["sphinx", "jaraco.packaging (>=3.2)", "rst.linker (>=1.9)"]
 testing = ["jaraco.itertools", "func-timeout"]
 
 [metadata]
-content-hash = "17cf8d4cf5a772217160daf312f590901dea4a3f5545d003035f3fb713a70f07"
+content-hash = "afeb906a1ba51bc9fc4e8c19c0b2c63bb5c9529697c9496d6edb64b509da9e0f"
 python-versions = ">=3.6.0, <3.9.0"
 
 [metadata.files]
diff --git a/pyproject.toml b/pyproject.toml
index 20f2c306..2a52a7e0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -35,6 +35,7 @@ behave = "^1.2"
 mkdocs = "^1.0"
 flake8 = "^3.7"
 black = {version = "^19.10b0",allow-prereleases = true}
+toml = "^0.10.0"
 
 [tool.poetry.scripts]
 jrnl = 'jrnl.cli:run'