diff --git a/Dockerfile b/Dockerfile
index 371400a..7003d1b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -32,9 +32,12 @@ RUN go mod download
 COPY . .
 RUN mkdir -p web/dist && touch web/dist/index.html web/dist/style.css web/dist/app.js
 # -p 4 because test runs on a shared build host cap their parallelism.
-RUN go test -p 4 -timeout 90s -race -cover ./... || \
+# -race also turns on Go's unsafe-pointer checks (checkptr) in every
+# package. In modernc.org, SQLite machine-translated from C, they doubled
+# the test time, so they are off there and stay on everywhere else.
+RUN go test -p 4 -timeout 90s -race -gcflags='modernc.org/...=-d=checkptr=0' -cover ./... || \
     { echo "--- Rerunning with -v for details ---"; \
-      go test -p 4 -timeout 90s -race -v ./...; exit 1; }
+      go test -p 4 -timeout 90s -race -gcflags='modernc.org/...=-d=checkptr=0' -v ./...; exit 1; }
 
 # Build stage. Nothing is wanted from either phase above; the copies
 # are what make BuildKit build them first, so this stage cannot run