diff --git a/docs/developing/decisions/00018-external-instance-directory-registry.md b/docs/developing/decisions/00019-external-instance-directory-registry.md
similarity index 100%
rename from docs/developing/decisions/00018-external-instance-directory-registry.md
rename to docs/developing/decisions/00019-external-instance-directory-registry.md
diff --git a/docs/developing/decisions/00018-view-independent-merges-and-subtree-grafting.md b/docs/developing/decisions/00020-view-independent-merges-and-subtree-grafting.md
similarity index 100%
rename from docs/developing/decisions/00018-view-independent-merges-and-subtree-grafting.md
rename to docs/developing/decisions/00020-view-independent-merges-and-subtree-grafting.md