diff --git a/package-lock.json b/package-lock.json
index 98e5b7d..721c794 100644
--- a/package-lock.json
+++ b/package-lock.json
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@@ -16911,9 +17001,9 @@
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@@ -17538,14 +17628,14 @@
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@@ -17563,9 +17653,9 @@
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@@ -17573,7 +17663,7 @@
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@@ -18573,9 +18663,9 @@
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@@ -18952,9 +19042,9 @@
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@@ -19282,9 +19372,9 @@
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@@ -19292,10 +19382,8 @@
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diff --git a/package.json b/package.json
index fe3845c..df32855 100644
--- a/package.json
+++ b/package.json
@@ -60,7 +60,7 @@
 		"node": ">= 6.9.4"
 	},
 	"devDependencies": {
-		"pressbooks-build-tools": "^1.2.1",
+		"pressbooks-build-tools": "^1.3.1",
 		"sass": "^1.15.2",
 		"sass-loader": "^7.1.0",
 		"vue-template-compiler": "^2.5.21"