diff --git a/bin/create_boot_disk b/bin/create_boot_disk
index 43ed5a9..f889f03 100755
--- a/bin/create_boot_disk
+++ b/bin/create_boot_disk
@@ -1,4 +1,4 @@
-#! /bin/bash
+#! /usr/bin/env bash
 
 # DESCRIPTION
 # Creates macOS boot disk.
diff --git a/bin/install_dev_tools b/bin/install_dev_tools
index d18b004..79b64db 100755
--- a/bin/install_dev_tools
+++ b/bin/install_dev_tools
@@ -1,4 +1,4 @@
-#! /bin/bash
+#! /usr/bin/env bash
 
 # DESCRIPTION
 # Installs development tooling requirements.
diff --git a/bin/run b/bin/run
index 590895a..147c664 100755
--- a/bin/run
+++ b/bin/run
@@ -1,4 +1,4 @@
-#! /bin/bash
+#! /usr/bin/env bash
 
 # DESCRIPTION
 # Executes the command line interface.
diff --git a/lib/installers.sh b/lib/installers.sh
index eb7fc76..22f1253 100644
--- a/lib/installers.sh
+++ b/lib/installers.sh
@@ -1,4 +1,4 @@
-#! /bin/bash
+#! /usr/bin/env bash
 
 # DESCRIPTION
 # Defines software installer functions.
diff --git a/lib/options.sh b/lib/options.sh
index 1ef5f38..2677aa9 100644
--- a/lib/options.sh
+++ b/lib/options.sh
@@ -1,4 +1,4 @@
-#! /bin/bash
+#! /usr/bin/env bash
 
 # DESCRIPTION
 # Defines command line prompt options.
diff --git a/lib/reinstallers.sh b/lib/reinstallers.sh
index b0ae9b7..47ed40e 100644
--- a/lib/reinstallers.sh
+++ b/lib/reinstallers.sh
@@ -1,4 +1,4 @@
-#! /bin/bash
+#! /usr/bin/env bash
 
 # DESCRIPTION
 # Defines reinstall functions.
diff --git a/lib/restorers.sh b/lib/restorers.sh
index 4f5c19b..f2debd6 100644
--- a/lib/restorers.sh
+++ b/lib/restorers.sh
@@ -1,4 +1,4 @@
-#! /bin/bash
+#! /usr/bin/env bash
 
 # DESCRIPTION
 # Defines software restore functions.
diff --git a/lib/settings.sh b/lib/settings.sh
index 3e3af0c..7e08408 100644
--- a/lib/settings.sh
+++ b/lib/settings.sh
@@ -1,4 +1,4 @@
-#! /bin/bash
+#! /usr/bin/env bash
 
 # DESCRIPTION
 # Defines global settings.
diff --git a/lib/uninstallers.sh b/lib/uninstallers.sh
index 384d5de..ae8a923 100644
--- a/lib/uninstallers.sh
+++ b/lib/uninstallers.sh
@@ -1,4 +1,4 @@
-#! /bin/bash
+#! /usr/bin/env bash
 
 # DESCRIPTION
 # Defines uninstall functions.
diff --git a/lib/utilities.sh b/lib/utilities.sh
index 13b7eec..618a9ab 100644
--- a/lib/utilities.sh
+++ b/lib/utilities.sh
@@ -1,4 +1,4 @@
-#! /bin/bash
+#! /usr/bin/env bash
 
 # DESCRIPTION
 # Defines general utility functions.
diff --git a/lib/verifiers.sh b/lib/verifiers.sh
index 1e86f7a..0693234 100644
--- a/lib/verifiers.sh
+++ b/lib/verifiers.sh
@@ -1,4 +1,4 @@
-#! /bin/bash
+#! /usr/bin/env bash
 
 # DESCRIPTION
 # Defines verification/validation functions.