diff --git a/.travis.yml b/.travis.yml
index 74f8624..0ecf68b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,7 +9,7 @@ before_install:
   homebrew/dupes/zlib curl; fi
 - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then export PKG_CONFIG_PATH='/usr/local/opt/openssl/lib/pkgconfig'; fi
 - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then export PHP_CONFIGURE_OPTIONS='--with-iconv=$(brew --prefix libiconv) --with-openssl=$(brew --prefix openssl)'; fi
-- if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then export PATH="/usr/local/opt/icu4c/bin:/usr/local/opt/icu4c/sbin:/usr/local/opt/bison/bin:$PATH"; fi
+- if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then export PATH="$(brew --prefix bison):$(brew --prefix icu4c)/bin:$(brew --prefix icu4c)/sbin:$PATH"; fi
 - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then sudo apt-get update -qq; fi
 - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then sudo apt-get install curl build-essential
   autoconf libjpeg-dev libpng12-dev openssl libssl-dev libcurl4-openssl-dev pkg-config
diff --git a/README.md b/README.md
index c5c079c..6d2d021 100644
--- a/README.md
+++ b/README.md
@@ -42,7 +42,7 @@ Use environment variables to instruct autoconf on where to find the libraries yo
 So replace if necessary:
 
 ```
-PATH="/usr/local/opt/icu4c/bin:/usr/local/opt/icu4c/sbin:/usr/local/opt/bison/bin:$PATH" PHP_CONFIGURE_OPTIONS="--with-iconv=$(brew --prefix libiconv) --with-openssl=$(brew --prefix openssl)" asdf install php <version>
+PATH="$(brew --prefix bison):$(brew --prefix icu4c)/bin:$(brew --prefix icu4c)/sbin:$PATH" PHP_CONFIGURE_OPTIONS="--with-iconv=$(brew --prefix libiconv) --with-openssl=$(brew --prefix openssl)" asdf install php <version>
 ```
 
 **Important note**: There seems to be a bug with PHP `configure` file on recent versions (> 7.1.4) when using on OSX environments. As can be seen in [this PR](https://github.com/phpbrew/phpbrew/issues/876#issuecomment-301553990), it's needed to disable gettext at build time to work, and later on impate the module manually.