diff --git a/CHANGELOG.md b/CHANGELOG.md
index d989c9d..25519c1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Python Buildpack Changelog
 
+# 154 (2019-07-17)
+
+Fix python 3.5.7 formula actually building 3.7.2
+
+# 153 (2019-06-21)
+
+Hotfix for broken heroku-16 deploys
+
 # 152 (2019-04-04)
 
 Python 3.7.3 now available.
diff --git a/Dockerfile b/Dockerfile
index 7a78561..0e00b3c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,7 +3,8 @@ FROM heroku/heroku:16-build
 WORKDIR /app
 ENV WORKSPACE_DIR="/app/builds" \
     S3_BUCKET="lang-python" \
-    S3_PREFIX="heroku-16/"
+    S3_PREFIX="heroku-16/" \
+    DEBIAN_FRONTEND=noninteractive
 
 RUN apt-get update && apt-get install -y python-pip && rm -rf /var/lib/apt/lists/*
 
diff --git a/Dockerfile.heroku-18 b/Dockerfile.heroku-18
index d34e948..466506a 100644
--- a/Dockerfile.heroku-18
+++ b/Dockerfile.heroku-18
@@ -3,7 +3,8 @@ FROM heroku/heroku:18-build
 WORKDIR /app
 ENV WORKSPACE_DIR="/app/builds" \
     S3_BUCKET="lang-python" \
-    S3_PREFIX="heroku-18/"
+    S3_PREFIX="heroku-18/" \
+    DEBIAN_FRONTEND=noninteractive
 
 RUN apt-get update && apt-get install -y python-pip && rm -rf /var/lib/apt/lists/*
 
diff --git a/builds/runtimes/python-3.5.7 b/builds/runtimes/python-3.5.7
index 4d74b89..2a07209 100755
--- a/builds/runtimes/python-3.5.7
+++ b/builds/runtimes/python-3.5.7
@@ -13,9 +13,9 @@ echo "Setting up SQLite3 Headers for $SQLITE3_VERSION"
 sqlite3_install "$OUT_PREFIX" "$SQLITE3_VERSION" 1
 
 echo "Building Python…"
-SOURCE_TARBALL='https://python.org/ftp/python/3.7.2/Python-3.7.2.tgz'
+SOURCE_TARBALL='https://python.org/ftp/python/3.5.7/Python-3.5.7.tgz'
 curl -L $SOURCE_TARBALL | tar xz
-mv Python-3.7.2 src
+mv Python-3.5.7 src
 cd src
 
 ./configure --prefix=$OUT_PREFIX --with-ensurepip=no