diff --git a/build/build.xml b/build/build.xml
index e0d848a68..bf8ad193f 100644
--- a/build/build.xml
+++ b/build/build.xml
@@ -703,7 +703,7 @@
                shortVersion="${version}"
                version="${revision}"
                mainClassName="processing.app.BaseSplash"
-               minimumSystemVersion="10.10.0">
+               minimumSystemVersion="10.13.6">
 
       <!-- The appbundler task needs a couple files (the Info.plist and
            anything else outside /jdk) from the full JDK, even though
diff --git a/build/shared/changes.md b/build/shared/changes.md
index ab512b5da..b80f35b78 100644
--- a/build/shared/changes.md
+++ b/build/shared/changes.md
@@ -4,6 +4,8 @@
 
 Several fixes for this round, plus working on the guts quite a bit to prepare for newer/faster/better rendering methods.
 
+The minimum system version for macOS (for the PDE and exported applications) is now set to 10.13.6 (the last update of High Sierra). Apple will likely be dropping support for High Sierra in late 2020, so we may make the minimum 10.14.x by the time 4.x ships.
+
 
 ### Bug Fixes
 
diff --git a/java/application/Info.plist.tmpl b/java/application/Info.plist.tmpl
index 1cd85f07b..6a2de5a54 100644
--- a/java/application/Info.plist.tmpl
+++ b/java/application/Info.plist.tmpl
@@ -38,7 +38,7 @@
     <string>@@sketch@@</string>
 
     <key>LSMinimumSystemVersion</key>
-    <string>10.10.0</string>
+    <string>10.13.6</string>
 
     <key>NSHighResolutionCapable</key>
     <true/>