Line an 8x8 baking pan with parchment paper and set aside.
Soak pitted dates in 1/4 cup water for at least 30 minutes. Transfer soaked dates and water to a blender and blend until the dates form a smooth paste.
Pour date paste into a large bowl. Add the hemp seed butter and mix until well combined. Fold in the remaining ingredients until thoroughly mixed.
Transfer to the prepared baking dish and spread evenly. Flatten top.
Refrigerate for at least 2 hours until bars set up. Cut into 16 squares.