diff --git a/go/packages/packages_test.go b/go/packages/packages_test.go
index 5f6c2eb..50e6344 100644
--- a/go/packages/packages_test.go
+++ b/go/packages/packages_test.go
@@ -1600,6 +1600,12 @@
 						continue
 					}
 				}
+				// math/bits took on a dependency on unsafe in 1.12, which breaks some
+				// tests. As a short term hack, prune that edge.
+				// TODO(matloob): think of a cleaner solution, or remove math/bits from the test.
+				if p.ID == "math/bits" && imp.ID == "unsafe" {
+					continue
+				}
 				edges = append(edges, fmt.Sprintf("%s -> %s", p, imp))
 				visit(imp)
 			}