diff --git a/LICENSE.md b/LICENSE.md
index 3da0f176acc..d81631a597e 100644
--- a/LICENSE.md
+++ b/LICENSE.md
@@ -16,6 +16,35 @@ The published Rollup artifact additionally contains code with the following lice
 MIT, ISC
 
 # Bundled dependencies:
+## @jridgewell/sourcemap-codec
+License: MIT
+By: Rich Harris
+Repository: git+https://github.com/jridgewell/sourcemap-codec.git
+
+> The MIT License
+> 
+> Copyright (c) 2015 Rich Harris
+> 
+> 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.
+
+---------------------------------------
+
 ## @rollup/pluginutils
 License: MIT
 By: Rich Harris
diff --git a/browser/LICENSE.md b/browser/LICENSE.md
index f0c9254ed4c..d66331904c5 100644
--- a/browser/LICENSE.md
+++ b/browser/LICENSE.md
@@ -16,6 +16,35 @@ The published Rollup artifact additionally contains code with the following lice
 MIT, ISC
 
 # Bundled dependencies:
+## @jridgewell/sourcemap-codec
+License: MIT
+By: Rich Harris
+Repository: git+https://github.com/jridgewell/sourcemap-codec.git
+
+> The MIT License
+> 
+> Copyright (c) 2015 Rich Harris
+> 
+> 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.
+
+---------------------------------------
+
 ## @rollup/pluginutils
 License: MIT
 By: Rich Harris