diff --git a/.circleci/config.yml b/.circleci/config.yml
index 98d371f3..3cc84493 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -10,7 +10,7 @@ version: 2
 jobs:
   generate-bindings:
     docker:
-      - image: circleci/openjdk:8u171-jdk-node-browsers
+      - image: cimg/openjdk:11.0.10-node
     steps:
       - checkout
 
@@ -27,7 +27,7 @@ jobs:
 
   py27:
     docker:
-      - image: circleci/python:2.7.15
+      - image: cimg/python:2.7.18
     steps:
       - checkout
 
@@ -62,7 +62,7 @@ jobs:
 
   py3:
     docker:
-      - image: circleci/python:3.6.5
+      - image: cimg/python:3.6.15
     steps:
       - checkout
 
@@ -97,7 +97,7 @@ jobs:
 
   mypy27:
     docker:
-      - image: circleci/python:3.6.5
+      - image: cimg/python:3.6.15
     steps:
       - checkout
 
@@ -129,7 +129,7 @@ jobs:
 
   mypy3:
     docker:
-      - image: circleci/python:3.6.5
+      - image: cimg/python:3.6.15
     steps:
       - checkout
 
@@ -161,7 +161,7 @@ jobs:
 
   lint:
     docker:
-      - image: circleci/python:3.6.5
+      - image: cimg/python:3.6.15
     steps:
       - checkout
 
@@ -193,15 +193,14 @@ jobs:
 
   publish-wheel:
     docker:
-      - image: circleci/python:3.6.5
+      - image: cimg/python:3.6.15
     steps:
       - checkout
       - deploy:
           command: |
             pip install --user setuptools wheel twine
             python setup.py sdist bdist_wheel --universal
-            ~/.local/bin/twine upload dist/*
-
+            ~/.local/bin/twine upload --repository-url https://upload.pypi.org/legacy/ -u $PYPI_USERNAME -p $PYPI_PASSWORD dist/*
 workflows:
   version: 2
   build:
diff --git a/scripts/download_conjure_python.sh b/scripts/download_conjure_python.sh
index df7613de..b67cd236 100755
--- a/scripts/download_conjure_python.sh
+++ b/scripts/download_conjure_python.sh
@@ -7,7 +7,7 @@ ARTIFACT_NAME="conjure-python-${VERSION}"
 DOWNLOAD_OUTPUT="build/downloads/conjure-python.tgz"
 
 mkdir -p build/downloads
-curl -L "https://palantir.bintray.com/releases/com/palantir/conjure/python/conjure-python/${VERSION}/${ARTIFACT_NAME}.tgz" -o "$DOWNLOAD_OUTPUT"
+curl -L "https://repo1.maven.org/maven2/com/palantir/conjure/python/conjure-python/${VERSION}/${ARTIFACT_NAME}.tgz" -o "$DOWNLOAD_OUTPUT"
 
 tar xf "$DOWNLOAD_OUTPUT" -C build
 rm -rf "build/conjure-python"
diff --git a/scripts/download_test_server.sh b/scripts/download_test_server.sh
index d2805d5b..3c3fdab3 100755
--- a/scripts/download_test_server.sh
+++ b/scripts/download_test_server.sh
@@ -24,12 +24,12 @@ function download() {
 
 DOWNLOAD_OUTPUT="$RESOURCES_DIR/${API}.conjure.json"
 ARTIFACT_NAME="${API}-${VERSION}.conjure.json"
-out=$(download "https://palantir.bintray.com/releases/com/palantir/conjure/verification/${API}/${VERSION}/${ARTIFACT_NAME}")
+out=$(download "https://repo1.maven.org/maven2/com/palantir/conjure/verification/${API}/${VERSION}/${ARTIFACT_NAME}")
 cp -f "$out" "$DOWNLOAD_OUTPUT"
 
 DOWNLOAD_OUTPUT="$RESOURCES_DIR/${TEST_CASES}.json"
 ARTIFACT_NAME="${TEST_CASES}-${VERSION}.json"
-out=$(download "https://palantir.bintray.com/releases/com/palantir/conjure/verification/${TEST_CASES}/${VERSION}/${ARTIFACT_NAME}")
+out=$(download "https://repo1.maven.org/maven2/com/palantir/conjure/verification/${TEST_CASES}/${VERSION}/${ARTIFACT_NAME}")
 cp -f "$out" "$DOWNLOAD_OUTPUT"
 
 
@@ -40,6 +40,6 @@ case $(uname -s) in
 esac
 
 ARTIFACT_NAME="${SERVER}-${VERSION}-${TARGET}.tgz"
-out=$(download "https://palantir.bintray.com/releases/com/palantir/conjure/verification/${SERVER}/${VERSION}/${ARTIFACT_NAME}")
+out=$(download "https://repo1.maven.org/maven2/com/palantir/conjure/verification/${SERVER}/${VERSION}/${ARTIFACT_NAME}")
 tar xf "$out" -C "$DOWNLOADS_DIR/bin"
 chmod +x "$DOWNLOADS_DIR/bin/conjure-verification-server"