diff --git a/README.md b/README.md
index f56ba3d..8468d14 100644
--- a/README.md
+++ b/README.md
@@ -60,7 +60,7 @@ Epichrome is open source and a labor of love, made possible by the generosity of
 
 ## New in version 2.3.23
 
-- The built-in engine has been updated to Brave 1.1X.XX.
+- The built-in engine has been updated to Brave 1.18.77.
 
 
 *Check out the [**change log**](https://github.com/dmarmor/epichrome/blob/master/app/CHANGELOG.md "CHANGELOG.md") for the full list.*
diff --git a/app/CHANGELOG.md b/app/CHANGELOG.md
index 32ee7a6..b60ac51 100644
--- a/app/CHANGELOG.md
+++ b/app/CHANGELOG.md
@@ -2,9 +2,9 @@
 This project adheres to [Semantic Versioning](http://semver.org/).
 
 
-## [2.3.23] - 202X-XX-XX
+## [2.3.23] - 2021-01-03
 ### Changed
-- Updated built-in engine to Brave 1.1X.XX
+- Updated built-in engine to Brave 1.18.77
 
 
 ## [2.3.22] - 2020-12-24
diff --git a/app/Makefile b/app/Makefile
index 36e854d..36a475e 100644
--- a/app/Makefile
+++ b/app/Makefile
@@ -231,8 +231,16 @@ clean-all: clean clean-package clean-engine
 
 %.png: %.psd
 	open -a "$$(cd ../images ; pwd)"/PNG.app '$<'
-	@read -p "Hit Enter when Photoshop has finished converting $@: " -r
-
+	@printf 'Waiting for Photoshop to finish converting $@...'
+	@while [[ ( ! -e $@ ) || ( $@ -ot $< ) ]] ; do sleep 1 ; done
+	@mtime=$$(stat -f '%m' $@) ; \
+	while [[ "$$oldmtime" != "$$mtime" ]] ; do \
+		sleep 1 ; \
+		oldmtime="$$mtime" ; \
+		mtime=$$(stat -f '%m' $@) ; \
+	done
+	@echo 'done!'
+	
 
 # PACKAGE BUILD
 # (adapted from http://thegreyblog.blogspot.com/2014/06/os-x-creating-packages-from-command_2.html)
diff --git a/app/src/welcome/welcome.html b/app/src/welcome/welcome.html
index 8315832..f4be8fe 100644
--- a/app/src/welcome/welcome.html
+++ b/app/src/welcome/welcome.html
@@ -99,7 +99,7 @@ <h3 class="group_pg pg_update pg_change_engine pg_reset">Changes to This App</h3
               <div id="changes_minor" class="change_list changes_minor"> <!-- add .changes_version_zero for x.x.0 -->
                 <h3>New in Version <span id="update_version_minor">EPIVERSION</span></h3>
                 <ul>
-                  <li>Built-in engine updated to Brave 1.1X.XX</li>
+                  <li>Built-in engine updated to Brave 1.18.77</li>
                 </ul>
               </div>
               <!-- hide this for x.x.0 releases -->