diff --git a/jupyter_book/__init__.py b/jupyter_book/__init__.py
index fafcc069d8370eb3be05d76025138c41671d453c..bfbe27ad5f24a80cf6e490dee904acb0a42c7135 100644
--- a/jupyter_book/__init__.py
+++ b/jupyter_book/__init__.py
@@ -1,2 +1,2 @@
 """Build an online book using Jupyter Notebooks and Jekyll."""
-__version__ = "0.5.2dev0"
+__version__ = "0.5.2"
diff --git a/jupyter_book/commands/__init__.py b/jupyter_book/commands/__init__.py
index c22506b70f09f25727c777112b877de6e4b37fb0..a4f5a990f4a52bd4aa5a28da37cfe54704784b6a 100644
--- a/jupyter_book/commands/__init__.py
+++ b/jupyter_book/commands/__init__.py
@@ -3,3 +3,4 @@ from .build import build
 from .create import create
 from .upgrade import upgrade
 from .run import run
+from .version import version
diff --git a/jupyter_book/commands/version.py b/jupyter_book/commands/version.py
new file mode 100644
index 0000000000000000000000000000000000000000..a35c46df6ed4eb8124bf271e266a98e90421219f
--- /dev/null
+++ b/jupyter_book/commands/version.py
@@ -0,0 +1,9 @@
+import sys
+import argparse
+from jupyter_book import __version__
+
+def version():
+    parser = argparse.ArgumentParser(
+        description="Print the version of Jupyter Book currently in-use.")
+
+    print("Running Jupyter Book version: {}".format(__version__))
\ No newline at end of file
diff --git a/jupyter_book/main.py b/jupyter_book/main.py
index 26f6e15727d90f4bfb4eeb2bbee7202d55d5840e..7c565ba52b89d5b09f8ae2e516f3a451fbc22271 100644
--- a/jupyter_book/main.py
+++ b/jupyter_book/main.py
@@ -1,7 +1,7 @@
 import sys
 import argparse
 
-from .commands import build, create, upgrade
+from .commands import build, create, upgrade, version
 from .run import run_book
 from .toc import build_toc
 
@@ -12,7 +12,8 @@ commands = {'create': create,
             'build': build,
             'upgrade': upgrade,
             'run': run_book,
-            'toc': build_toc}
+            'toc': build_toc,
+            'version': version}
 parser = argparse.ArgumentParser(description=DESCRIPTION)
 parser.add_argument("command", help="The command you'd like to run. Allowed commands: {}".format(
     list(commands.keys())))