diff --git a/.evergreen/run-azure-kms-mock-server.sh b/.evergreen/run-azure-kms-mock-server.sh
index 06d07236e9..944cdcd27a 100644
--- a/.evergreen/run-azure-kms-mock-server.sh
+++ b/.evergreen/run-azure-kms-mock-server.sh
@@ -4,6 +4,9 @@ if [ -z ${DRIVERS_TOOLS+omitted} ]; then echo "DRIVERS_TOOLS is unset" && exit 1
 
 set -o errexit
 
-python3 $DRIVERS_TOOLS/.evergreen/csfle/bottle.py fake_azure:imds &
+pushd $DRIVERS_TOOLS/.evergreen/csfle
+. ./activate-kmstlsvenv.sh
+python bottle.py fake_azure:imds &
+popd
 
 echo "Running Azure KMS idms server on port 8080"
diff --git a/.evergreen/run-socks5-tests.sh b/.evergreen/run-socks5-tests.sh
index dac6a159e7..e85566b7ad 100644
--- a/.evergreen/run-socks5-tests.sh
+++ b/.evergreen/run-socks5-tests.sh
@@ -30,7 +30,7 @@ function setup_fle() {
 
 node -v
 
-PYTHON_BINARY=${PYTHON_BINARY:-python3}
+PYTHON_BINARY=$(bash -c ". $DRIVERS_TOOLS/.evergreen/find-python3.sh && ensure_python3 2>/dev/null")
 
 # ssl setup
 SSL=${SSL:-nossl}