diff --git a/.changeset/fuzzy-dogs-share.md b/.changeset/fuzzy-dogs-share.md
new file mode 100644
index 000000000000..3b890e4e9e8d
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+++ b/.changeset/fuzzy-dogs-share.md
@@ -0,0 +1,6 @@
+---
+'@eth-optimism/l2geth': patch
+'@eth-optimism/core-utils': patch
+---
+
+Implement the next fee spec in both geth and in core-utils