diff --git a/5.020.000-64bit,threaded/Dockerfile b/5.020.000-64bit,threaded/Dockerfile
deleted file mode 100644
index f78984b..0000000
--- a/5.020.000-64bit,threaded/Dockerfile
+++ /dev/null
@@ -1,25 +0,0 @@
-FROM buildpack-deps
-MAINTAINER Peter Martini <PeterCMartini@GMail.com>
-
-RUN apt-get update && apt-get install -y curl procps
-
-RUN mkdir /usr/src/perl
-WORKDIR /usr/src/perl
-RUN curl -SL http://www.cpan.org/src/5.0/perl-5.20.0.tar.gz \
-                | tar -xz --strip-components=1
-
-RUN ./Configure -Dusethreads -Duse64bitall -des \
-        && make -j$(nproc) \
-        && TEST_JOBS=$(nproc) make test_harness \
-        && make install \
-        && make veryclean
-
-WORKDIR /usr/src
-RUN curl -LO https://raw.githubusercontent.com/miyagawa/cpanminus/master/cpanm \
-        && chmod +x cpanm \
-        && ./cpanm App::cpanminus \
-        && rm ./cpanm
-
-WORKDIR /root
-
-CMD ["perl5.20.0","-de0"]
diff --git a/5.020.000-64bit/Dockerfile b/5.020.000-64bit/Dockerfile
deleted file mode 100644
index 2e4c16a..0000000
--- a/5.020.000-64bit/Dockerfile
+++ /dev/null
@@ -1,25 +0,0 @@
-FROM buildpack-deps
-MAINTAINER Peter Martini <PeterCMartini@GMail.com>
-
-RUN apt-get update && apt-get install -y curl procps
-
-RUN mkdir /usr/src/perl
-WORKDIR /usr/src/perl
-RUN curl -SL http://www.cpan.org/src/5.0/perl-5.20.0.tar.gz \
-                | tar -xz --strip-components=1
-
-RUN ./Configure -Duse64bitall -des \
-        && make -j$(nproc) \
-        && TEST_JOBS=$(nproc) make test_harness \
-        && make install \
-        && make veryclean
-
-WORKDIR /usr/src
-RUN curl -LO https://raw.githubusercontent.com/miyagawa/cpanminus/master/cpanm \
-        && chmod +x cpanm \
-        && ./cpanm App::cpanminus \
-        && rm ./cpanm
-
-WORKDIR /root
-
-CMD ["perl5.20.0","-de0"]