diff --git a/docs/postmortems/2021-08-22-split-postmortem.md b/docs/postmortems/2021-08-22-split-postmortem.md
index 2e5c41c764..7ecf717851 100644
--- a/docs/postmortems/2021-08-22-split-postmortem.md
+++ b/docs/postmortems/2021-08-22-split-postmortem.md
@@ -6,7 +6,7 @@ This is a post-mortem concerning the minority split that occurred on Ethereum ma
 
 
 - 2021-08-17: Guido Vranken submitted a bounty report. Investigation started, root cause identified, patch variations discussed. 
-- 2021-08-18: Made public announcement over twitter about upcoming security release upcoming Tuesday. Downstream projects were also notified about the upcoming patch-release.
+- 2021-08-18: Made public announcement over twitter about upcoming security release on Tuesday. Downstream projects were also notified about the upcoming patch-release.
 - 2021-08-24: Released [v1.10.8](https://github.com/ethereum/go-ethereum/releases/tag/v1.10.8) containing the fix on Tuesday morning (CET). Erigon released [v2021.08.04](https://github.com/ledgerwatch/erigon/releases/tag/v2021.08.04).
 - 2021-08-27: At 12:50:07 UTC, issue exploited. Analysis started roughly 30m later, 
 
@@ -18,7 +18,7 @@ This is a post-mortem concerning the minority split that occurred on Ethereum ma
 
 On 2021-08-17, Guido Vranken submitted a report to bounty@ethereum.org. This coincided with a geth-meetup in Berlin, so the geth team could fairly quickly analyse the issue. 
 
-He submitted a proof of concept which called the `dataCopy` precompile, where the input slice and output slice were overlapping but shifted. Doing a `copy` where the `src` and `dest` overlaps is not a problem in itself, however, the `returnData`slice was _also_ using the same memory as a backing-array.
+He submitted a proof of concept which called the `dataCopy` precompile, where the input slice and output slice were overlapping but shifted. Doing a `copy` where the `src` and `dest` overlaps is not a problem in itself, however, the `returnData` slice was _also_ using the same memory as a backing-array.
 
 #### Technical details