diff --git a/.dockerignore b/.dockerignore
index 3eb8fac..de94cda 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -4,6 +4,10 @@
 .gitattributes
 .gitignore
 Dockerfile
+README.md
+CODE_OF_CONDUCT.md
+bin/benchmark.sh
+bin/benchmark-in-docker.sh
 bin/run-in-docker.sh
 bin/run-tests-in-docker.sh
 bin/run-tests.sh
diff --git a/Dockerfile b/Dockerfile
index 1bbd9bd..b263d39 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -93,6 +93,14 @@ RUN cd basis/io/encodings && rm -rf \
 # at least basis/binary-search at runtime.
 RUN find . -name '*-docs.factor' -delete
 
+# Drop the Unicode source data tables. These are parsed only during bootstrap to
+# build the unicode tables that are baked into factor.image; they are not read at
+# runtime.
+RUN rm -f basis/unicode/UnicodeData.txt \
+    basis/unicode/allkeys.txt
+
+RUN strip factor
+
 
 FROM ${WOLFI_BASE}