diff --git a/lib/core/error-correction-code.js b/lib/core/error-correction-code.js
old mode 100755
new mode 100644
diff --git a/lib/core/version.js b/lib/core/version.js
old mode 100755
new mode 100644
diff --git a/test/unit/core/alignment-pattern.test.js b/test/unit/core/alignment-pattern.test.js
old mode 100755
new mode 100644
diff --git a/test/unit/core/finder-pattern.test.js b/test/unit/core/finder-pattern.test.js
old mode 100755
new mode 100644
diff --git a/test/unit/core/mask-pattern.test.js b/test/unit/core/mask-pattern.test.js
old mode 100755
new mode 100644
diff --git a/test/unit/core/utils.test.js b/test/unit/core/utils.test.js
old mode 100755
new mode 100644