diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,3 +1,7 @@
+## 1.4.3.8
+
+* Scaffold update: fix 404 for missing sourcemap
+
 ## 1.4.3.6
 
 * Scaffold update: use `addToken` instead of `addNonce`
diff --git a/hsfiles/mongo.hsfiles b/hsfiles/mongo.hsfiles
--- a/hsfiles/mongo.hsfiles
+++ b/hsfiles/mongo.hsfiles
@@ -7194,7 +7194,6 @@
     display: none !important;
   }
 }
-/*# sourceMappingURL=bootstrap.css.map */
 
 {-# START_FILE BASE64 static/fonts/glyphicons-halflings-regular.eot #-}
 b08AABFOAAACAAIABAAAAAAABQAAAAAAAAABAJABAAAEAExQAAAAAAAAAAAAAAAAAAAAAAEAAAAA
diff --git a/hsfiles/mysql.hsfiles b/hsfiles/mysql.hsfiles
--- a/hsfiles/mysql.hsfiles
+++ b/hsfiles/mysql.hsfiles
@@ -7204,7 +7204,6 @@
     display: none !important;
   }
 }
-/*# sourceMappingURL=bootstrap.css.map */
 
 {-# START_FILE BASE64 static/fonts/glyphicons-halflings-regular.eot #-}
 b08AABFOAAACAAIABAAAAAAABQAAAAAAAAABAJABAAAEAExQAAAAAAAAAAAAAAAAAAAAAAEAAAAA
diff --git a/hsfiles/postgres-fay.hsfiles b/hsfiles/postgres-fay.hsfiles
--- a/hsfiles/postgres-fay.hsfiles
+++ b/hsfiles/postgres-fay.hsfiles
@@ -7319,7 +7319,6 @@
     display: none !important;
   }
 }
-/*# sourceMappingURL=bootstrap.css.map */
 
 {-# START_FILE BASE64 static/fonts/glyphicons-halflings-regular.eot #-}
 b08AABFOAAACAAIABAAAAAAABQAAAAAAAAABAJABAAAEAExQAAAAAAAAAAAAAAAAAAAAAAEAAAAA
diff --git a/hsfiles/postgres.hsfiles b/hsfiles/postgres.hsfiles
--- a/hsfiles/postgres.hsfiles
+++ b/hsfiles/postgres.hsfiles
@@ -7204,7 +7204,6 @@
     display: none !important;
   }
 }
-/*# sourceMappingURL=bootstrap.css.map */
 
 {-# START_FILE BASE64 static/fonts/glyphicons-halflings-regular.eot #-}
 b08AABFOAAACAAIABAAAAAAABQAAAAAAAAABAJABAAAEAExQAAAAAAAAAAAAAAAAAAAAAAEAAAAA
diff --git a/hsfiles/simple.hsfiles b/hsfiles/simple.hsfiles
--- a/hsfiles/simple.hsfiles
+++ b/hsfiles/simple.hsfiles
@@ -7085,7 +7085,6 @@
     display: none !important;
   }
 }
-/*# sourceMappingURL=bootstrap.css.map */
 
 {-# START_FILE BASE64 static/fonts/glyphicons-halflings-regular.eot #-}
 b08AABFOAAACAAIABAAAAAAABQAAAAAAAAABAJABAAAEAExQAAAAAAAAAAAAAAAAAAAAAAEAAAAA
diff --git a/hsfiles/sqlite.hsfiles b/hsfiles/sqlite.hsfiles
--- a/hsfiles/sqlite.hsfiles
+++ b/hsfiles/sqlite.hsfiles
@@ -7222,7 +7222,6 @@
     display: none !important;
   }
 }
-/*# sourceMappingURL=bootstrap.css.map */
 
 {-# START_FILE BASE64 static/fonts/glyphicons-halflings-regular.eot #-}
 b08AABFOAAACAAIABAAAAAAABQAAAAAAAAABAJABAAAEAExQAAAAAAAAAAAAAAAAAAAAAAEAAAAA
diff --git a/yesod-bin.cabal b/yesod-bin.cabal
--- a/yesod-bin.cabal
+++ b/yesod-bin.cabal
@@ -1,5 +1,5 @@
 name:            yesod-bin
-version:         1.4.3.6
+version:         1.4.3.7
 license:         MIT
 license-file:    LICENSE
 author:          Michael Snoyman <michael@snoyman.com>
