diff --git a/migrations/000.483.sql b/migrations/000.483.sql
new file mode 100644
index 0000000..51c7a33
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+++ b/migrations/000.483.sql
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+-- Update paint primer sizes to actual sizes.
+UPDATE paint_primer_sizes SET liters = 2.7 WHERE liters = 5;
+UPDATE paint_primer_sizes SET liters = 0.9 WHERE liters = 3;
+UPDATE paint_primer_sizes SET liters = 0.5 WHERE liters = 1;