diff --git a/README.md b/README.md
index 2bad7c86..9801bd13 100644
--- a/README.md
+++ b/README.md
@@ -86,6 +86,22 @@ virtualenv -p python3 env
 pip install -e microraiden
 ```
 
+* if necessary to complete the build, install latest OpenSSL on MacOS
+
+```
+brew update
+brew upgrade openssl
+```
+
+* additional dependency-related build steps on MacOS as necessary:
+
+```
+export CPPFLAGS="-I/usr/local/opt/openssl/include $CPPFLAGS"
+brew install automake
+export LDFLAGS="-L/usr/local/opt/openssl/lib"
+brew install libtool
+```
+
 * install the WebUI component for the paywall examples
 
 Note that while the `RaidenMicroTransferChannels` contract supports multiple open channels between a sender and a receiver, the WebUI component only supports one.
diff --git a/microraiden/requirements-dev.txt b/microraiden/requirements-dev.txt
index daff4bf7..38247952 100644
--- a/microraiden/requirements-dev.txt
+++ b/microraiden/requirements-dev.txt
@@ -1,5 +1,5 @@
 -r requirements.txt
 pytest
-ethereum-tester
+eth-tester
 mock
 requests_mock