diff --git a/Project.toml b/Project.toml
index 4bbc9f02..10f730a6 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
+authors = ["Ömür Özkir <oemuer.oezkir@gmail.com>"]
 name = "Hamburg"
 uuid = "fe294631-7164-4d0f-9497-e1b4dc4640c8"
-authors = ["Ömür Özkir <oemuer.oezkir@gmail.com>"]
-version = "0.1.16"
+version = "0.1.20"
 
 [deps]
 CSV = "336ed68f-0bac-5ca0-87d4-7b16caf5d00b"
diff --git a/README.md b/README.md
index da674b99..dcc76230 100644
--- a/README.md
+++ b/README.md
@@ -106,6 +106,18 @@ The dataset sources will be checked for updates every day:
 - **start**: Start date
 - **end**: End date
 
+### pollen
+
+#### sources
+
+[wetteronline.de](https://www.wetteronline.de/)
+
+#### datasets
+
+##### levels
+
+`dataset("pollen", "levels")`
+
 ## Contribute?
 
 Yes, absolutely! If you have an interesting dataset, be it favourite ramen places in hamburg, high/low tide times or anything else, go for it. Just make sure that you provide your sources.