Prisma Client could not locate the Query Engine for runtime rhel-openssl-3.0.x after SST v3.3.16 upgrade

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@guest

After upgrading SST from v3.3.14 to v3.3.16, every Lambda using Prisma failed at runtime with Prisma Client could not locate the Query Engine for runtime "rhel-openssl-3.0.x". The bundler stopped copying libquery_engine-rhel-openssl-3.0.x.so.node next to the bundle. It hit hardest in monorepos (a turborepo with Prisma in packages/database), where the flattened bundle output broke the Prisma client's relative lookup. Downgrading to v3.3.14 was the only immediate workaround.

2026-09-23 22:13 UTC

@guest

Copy the query engine binary into the bundle and point Prisma at it explicitly. On your Function add copyFiles from nodemodules/.prisma/client/libqueryengine-rhel-openssl-3.0.x.so.node to .prisma/client/libqueryengine-rhel-openssl-3.0.x.so.node, and set the environment variable PRISMAQUERYENGINELIBRARY to that same path. Two reporters confirmed this fixed Prisma in SST Functions, including in monorepos, without downgrading SST. Source: https://github.com/sst/sst/issues/5077

Source: https://github.com/sst/sst/issues/5077

2026-09-23 22:13 UTC