diff --git a/LICENSE.txt b/LICENSE.txt
new file mode 100644
index 0000000..f40c5b5
--- /dev/null
+++ b/LICENSE.txt
@@ -0,0 +1,13 @@
+Copyright 2022 Robyn Speer
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
diff --git a/MIT-LICENSE.txt b/MIT-LICENSE.txt
deleted file mode 100644
index 7dfec8d..0000000
--- a/MIT-LICENSE.txt
+++ /dev/null
@@ -1,19 +0,0 @@
-Copyright (c) 2015 Luminoso Technologies, Inc.
-
-Permission is hereby granted, free of charge, to any person obtaining a
-copy of this software and associated documentation files (the "Software"),
-to deal in the Software without restriction, including without limitation
-the rights to use, copy, modify, merge, publish, distribute, sublicense,
-and/or sell copies of the Software, and to permit persons to whom the
-Software is furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
-DEALINGS IN THE SOFTWARE.
diff --git a/NOTICE.md b/NOTICE.md
new file mode 100644
index 0000000..828384d
--- /dev/null
+++ b/NOTICE.md
@@ -0,0 +1,64 @@
+wordfreq  
+Copyright 2022 Robyn Speer
+
+# Attribution notes
+
+Robyn Speer must be credited as Robyn Speer, which is her maiden name, used on academic work.
+Crediting her as Elia Robyn Lake (her married name) will make the credit less effective, as it will
+not line up with other work.
+
+Crediting Robyn Speer by a different name than one of the above is a serious violation of the license,
+in which case you do not have permission to use, copy, or redistribute wordfreq.
+
+If you use wordfreq in academic work, you must cite it. See "Citing wordfreq" in README.md.
+
+# Included licenses
+
+`wordfreq` is freely redistributable under the Apache license (see
+`LICENSE.txt`), and it includes data files that may be
+redistributed under a Creative Commons Attribution-ShareAlike 4.0
+license (<https://creativecommons.org/licenses/by-sa/4.0/>).
+
+`wordfreq` contains data extracted from Google Books Ngrams
+(<http://books.google.com/ngrams>) and Google Books Syntactic Ngrams
+(<http://commondatastorage.googleapis.com/books/syntactic-ngrams/index.html>).
+The terms of use of this data are:
+
+    Ngram Viewer graphs and data may be freely used for any purpose, although
+    acknowledgement of Google Books Ngram Viewer as the source, and inclusion
+    of a link to http://books.google.com/ngrams, would be appreciated.
+
+`wordfreq` also contains data derived from the following Creative Commons-licensed
+sources:
+
+- The Leeds Internet Corpus, from the University of Leeds Centre for Translation
+  Studies (<http://corpus.leeds.ac.uk/list.html>)
+
+- Wikipedia, the free encyclopedia (<http://www.wikipedia.org>)
+
+- ParaCrawl, a multilingual Web crawl (<https://paracrawl.eu>)
+
+It contains data from OPUS OpenSubtitles 2018
+(<http://opus.nlpl.eu/OpenSubtitles.php>), whose data originates from the
+OpenSubtitles project (<http://www.opensubtitles.org/>) and may be used with
+attribution to OpenSubtitles.
+
+It contains data from various SUBTLEX word lists: SUBTLEX-US, SUBTLEX-UK,
+SUBTLEX-CH, SUBTLEX-DE, and SUBTLEX-NL, created by Marc Brysbaert et al.
+(see citations below) and available at
+<http://crr.ugent.be/programs-data/subtitle-frequencies>.
+
+I (Robyn Speer) have obtained permission by e-mail from Marc Brysbaert to
+distribute these wordlists in wordfreq, to be used for any purpose, not just
+for academic use, under these conditions:
+
+- Wordfreq and code derived from it must credit the SUBTLEX authors.
+- It must remain clear that SUBTLEX is freely available data.
+
+These terms are similar to the Creative Commons Attribution-ShareAlike license.
+
+Some additional data was collected by a custom application that watches the
+streaming Twitter API, in accordance with Twitter's Developer Agreement &
+Policy. This software gives statistics about words that are commonly used on
+Twitter; it does not display or republish any Twitter content.
+
diff --git a/README.md b/README.md
index 751716f..7ece49c 100644
--- a/README.md
+++ b/README.md
@@ -454,8 +454,8 @@ As of version 2.4.2, you no longer have to install dictionaries separately.
 
 ## License
 
-`wordfreq` is freely redistributable under the MIT license (see
-`MIT-LICENSE.txt`), and it includes data files that may be
+`wordfreq` is freely redistributable under the Apache license (see
+`LICENSE.txt`), and it includes data files that may be
 redistributed under a Creative Commons Attribution-ShareAlike 4.0
 license (<https://creativecommons.org/licenses/by-sa/4.0/>).
 
@@ -508,24 +508,20 @@ If you use wordfreq in your research, please cite it! We publish the code
 through Zenodo so that it can be reliably cited using a DOI. The current
 citation is:
 
-> Robyn Speer, Joshua Chin, Andrew Lin, Sara Jewett, & Lance Nathan.
-> (2018, October 3). LuminosoInsight/wordfreq: v2.2. Zenodo.
-> <https://doi.org/10.5281/zenodo.1443582>
+> Robyn Speer. (2022). rspeer/wordfreq: v3.0 (v3.0.2). Zenodo. https://doi.org/10.5281/zenodo.7199437
 
 The same citation in BibTex format:
 
 ```
-@misc{robyn_speer_2018_1443582,
-  author       = {Robyn Speer and
-                  Joshua Chin and
-                  Andrew Lin and
-                  Sara Jewett and
-                  Lance Nathan},
-  title        = {LuminosoInsight/wordfreq: v2.2},
-  month        = oct,
-  year         = 2018,
-  doi          = {10.5281/zenodo.1443582},
-  url          = {https://doi.org/10.5281/zenodo.1443582}
+@software{robyn_speer_2022_7199437,
+  author       = {Robyn Speer},
+  title        = {rspeer/wordfreq: v3.0},
+  month        = sep,
+  year         = 2022,
+  publisher    = {Zenodo},
+  version      = {v3.0.2},
+  doi          = {10.5281/zenodo.7199437},
+  url          = {https://doi.org/10.5281/zenodo.7199437}
 }
 ```
 
diff --git a/pyproject.toml b/pyproject.toml
index 98240c5..022f262 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,9 +1,9 @@
 [tool.poetry]
 name = "wordfreq"
-version = "3.0.2"
+version = "3.0.3"
 description = "Look up the frequencies of words in many languages, based on many sources of data."
 authors = ["Robyn Speer <rspeer@arborelia.net>"]
-license = "MIT"
+license = "Apache-2.0"
 readme = "README.md"
 homepage = "https://github.com/rspeer/wordfreq/"