diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 17b06d7..c7e64a0 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -7,7 +7,7 @@ If you're unsure where to start, we recommend our [`good first issue`](https://g
 Bug reports and feature suggestions can be submitted to our issue tracker. For bug reports, attaching the contract that caused the bug will help us in debugging and resolving the issue quickly. If you find a security vulnerability, do not open an issue; email opensource@trailofbits.com instead.
 
 ## Questions
-Questions can be submitted to the issue tracker, but you may get a faster response if you ask in our [chat room](https://empireslacking.herokuapp.com/) (in the #ethereum channel).
+Questions can be submitted to the issue tracker, but you may get a faster response if you ask in our [chat room](https://slack.empirehacking.nyc/) (in the #ethereum channel).
 
 ## Code
 evm-cfg-builder uses the pull request contribution model. Please make an account on Github, fork this repo, and submit code contributions via pull request. For more documentation, look [here](https://guides.github.com/activities/forking/).
diff --git a/README.md b/README.md
index 9c9b1bb..ec58bc6 100644
--- a/README.md
+++ b/README.md
@@ -1,11 +1,11 @@
 # EVM CFG BUILDER
 [![Build Status](https://travis-ci.org/crytic/evm_cfg_builder.svg?branch=master)](https://travis-ci.org/crytic/evm_cfg_builder)
-[![Slack Status](https://empireslacking.herokuapp.com/badge.svg)](https://empireslacking.herokuapp.com)
+[![Slack Status](https://slack.empirehacking.nyc/badge.svg)](https://slack.empirehacking.nyc)
 [![PyPI version](https://badge.fury.io/py/evm-cfg-builder.svg)](https://badge.fury.io/py/evm-cfg-builder)
 
 `evm-cfg-builder` is used to extract a control flow graph (CFG) from EVM bytecode. It is used by Ethersplay, Manticore, and  other tools from Trail of Bits. It is a reliable foundation to build program analysis tools for EVM.
 
-We encourage contributions that address any known [issues](https://github.com/trailofbits/evm_cfg_builder/issues?q=is%3Aissue+is%3Aopen+sort%3Aupdated-desc) and will pay out bounties for accepted PRs. Join us on the [Empire Hacking Slack](https://empireslacking.herokuapp.com) to discuss using or extending `evm-cfg-builder`.
+We encourage contributions that address any known [issues](https://github.com/trailofbits/evm_cfg_builder/issues?q=is%3Aissue+is%3Aopen+sort%3Aupdated-desc) and will pay out bounties for accepted PRs. Join us on the [Empire Hacking Slack](https://slack.empirehacking.nyc) to discuss using or extending `evm-cfg-builder`.
 
 ## Features
 
@@ -54,7 +54,7 @@ pip install .
 
 ## Getting Help
 
-Feel free to stop by our [Slack channel](https://empireslacking.herokuapp.com) (#ethereum) for help using or extending evm-cfg-builder.
+Feel free to stop by our [Slack channel](https://slack.empirehacking.nyc) (#ethereum) for help using or extending evm-cfg-builder.
 
 ## License