diff --git a/nightly/buster/jdk-11/slim/Dockerfile b/nightly/buster/jdk-11/slim/Dockerfile
index 37ed0d44293179e213ae5ca1579b845f2d76a060..999dcf106fb1bd65032b00d388d27c8a61a4258d 100644
--- a/nightly/buster/jdk-11/slim/Dockerfile
+++ b/nightly/buster/jdk-11/slim/Dockerfile
@@ -31,6 +31,7 @@ RUN set -x \
     && rm -rf abcl* ant* apache-ant* \
     # Remove fetch deps
     && apt-get remove -y curl gnupg dirmngr \
+    && apt-get autoremove -y \
     && rm -rf /var/lib/apt/lists/* \
     # Smoke test ABCL.
     && java -jar /usr/local/share/abcl/abcl.jar --batch --eval '(print (multiple-value-list (lisp-implementation-version)))'
diff --git a/nightly/buster/jdk-15/slim/Dockerfile b/nightly/buster/jdk-15/slim/Dockerfile
index 267f9c43ac149d6aebdd86c129f12e9e93e0cad5..732f424cf768dad96802e123d9b09f5b9b01bee5 100644
--- a/nightly/buster/jdk-15/slim/Dockerfile
+++ b/nightly/buster/jdk-15/slim/Dockerfile
@@ -31,6 +31,7 @@ RUN set -x \
     && rm -rf abcl* ant* apache-ant* \
     # Remove fetch deps
     && apt-get remove -y curl gnupg dirmngr \
+    && apt-get autoremove -y \
     && rm -rf /var/lib/apt/lists/* \
     # Smoke test ABCL.
     && java -jar /usr/local/share/abcl/abcl.jar --batch --eval '(print (multiple-value-list (lisp-implementation-version)))'
diff --git a/nightly/buster/jdk-8/slim/Dockerfile b/nightly/buster/jdk-8/slim/Dockerfile
index a0a28c13e4f3c327e19d3425a303f9e62873735a..f13d34e72ec4de089f95c25fac878e4d7bfe38b1 100644
--- a/nightly/buster/jdk-8/slim/Dockerfile
+++ b/nightly/buster/jdk-8/slim/Dockerfile
@@ -31,6 +31,7 @@ RUN set -x \
     && rm -rf abcl* ant* apache-ant* \
     # Remove fetch deps
     && apt-get remove -y curl gnupg dirmngr \
+    && apt-get autoremove -y \
     && rm -rf /var/lib/apt/lists/* \
     # Smoke test ABCL.
     && java -jar /usr/local/share/abcl/abcl.jar --batch --eval '(print (multiple-value-list (lisp-implementation-version)))'