diff --git a/docs/examples/examples.ipynb b/docs/examples/examples.ipynb
index b2e1b23..5a7b991 100644
--- a/docs/examples/examples.ipynb
+++ b/docs/examples/examples.ipynb
@@ -41,7 +41,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "Read a fasta file as a [DataFrame](#pandas.DataFrame) containing some amino acid sequences."
+    "Read a fasta file as a [DataFrame](#pandas.DataFrame) containing some amino acid sequences. (The data are extracted from part of [the Antimicrobial Peptide Database](https://aps.unmc.edu/downloads).)"
    ]
   },
   {
diff --git a/pycdhit/__init__.py b/pycdhit/__init__.py
index 26b5d31..bcd18ff 100644
--- a/pycdhit/__init__.py
+++ b/pycdhit/__init__.py
@@ -4,7 +4,7 @@
 from ._commands import *  # noqa: F403
 from ._io import *  # noqa: F403
 
-VERSION = "0.9.0"
+VERSION = "0.10.0"
 
 __all__ = [  # noqa: F405
     "CommandBase",