diff --git a/.circleci/config.yml b/.circleci/config.yml
index 3cdf9f5..1baae79 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -1,7 +1,6 @@
 version: 2
 jobs:
   build:
-    working_directory: ~/syme
     docker:
       # Since we include lein in the repo, all we need is a JDK.
       - image: openjdk:8
@@ -12,8 +11,6 @@ jobs:
           POSTGRES_USER: root
           POSTGRES_DB: syme
     environment:
-      # Suppress warnings by setting LEIN_ROOT.
-      LEIN_ROOT=nbd
       DATABASE_URL=postgres://localhost/syme
     steps:
       - checkout
@@ -29,14 +26,4 @@ jobs:
       # Migrate the DB, then test.
       - run: bin/lein do run -m syme.db, test
       # Push it out to Heroku on a successful master build.
-      - add_ssh_keys
-      - deploy:
-          command: |
-              if [ "${CIRCLE_BRANCH}" == "master" ]; then
-                # Install Heroku SSH server fingerprint.
-                mkdir -p ~/.ssh
-                echo 'heroku.com ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAu8erSx6jh+8ztsfHwkNeFr/SZaSOcvoa8AyMpaerGIPZDB2TKNgNkMSYTLYGDK2ivsqXopo2W7dpQRBIVF80q9mNXy5tbt1WE04gbOBB26Wn2hF4bk3Tu+BNMFbvMjPbkVlC2hcFuQJdH4T2i/dtauyTpJbD/6ExHR9XYVhdhdMs0JsjP/Q5FNoWh2ff9YbZVpDQSTPvusUp4liLjPfa/i0t+2LpNCeWy8Y+V9gUlDWiyYwrfMVI0UwNCZZKHs1Unpc11/4HLitQRtvuk0Ot5qwwBxbmtvCDKZvj1aFBid71/mYdGRPYZMIxq1zgP1acePC1zfTG/lvuQ7d0Pe0kaw==' >> ~/.ssh/known_hosts
-
-                git config --global push.default simple
-                git push -f git@heroku.com:syme.git
-              fi
+      - run: git push --force https://heroku:$HEROKU_API_KEY@git.heroku.com/syme-staging.git master
diff --git a/bin/lein b/bin/lein
index 01909f9..f110171 100755
--- a/bin/lein
+++ b/bin/lein
@@ -4,13 +4,18 @@
 # somewhere on your $PATH, like ~/bin. The rest of Leiningen will be
 # installed upon first run into the ~/.lein/self-installs directory.
 
-export LEIN_VERSION="2.7.1"
+export LEIN_VERSION="2.8.1"
 
 case $LEIN_VERSION in
     *SNAPSHOT) SNAPSHOT="YES" ;;
     *) SNAPSHOT="NO" ;;
 esac
 
+if [[ "$CLASSPATH" != "" ]]; then
+    echo "WARNING: You have \$CLASSPATH set, probably by accident."
+    echo "It is strongly recommended to unset this before proceeding."
+fi
+
 if [[ "$OSTYPE" == "cygwin" ]] || [[ "$OSTYPE" == "msys" ]]; then
     delimiter=";"
 else
@@ -24,7 +29,7 @@ else
 fi
 
 function command_not_found {
-    >&2 echo "Leiningen coundn't find $1 in your \$PATH ($PATH), which is required."
+    >&2 echo "Leiningen couldn't find $1 in your \$PATH ($PATH), which is required."
     exit 1
 }
 
@@ -83,25 +88,6 @@ function self_install {
   fi
 }
 
-function check_root {
-  local -i user_id
-  # Thank you for the complexity, Solaris
-  if [ `uname` = "SunOS" -a -x /usr/xpg4/bin/id ]; then
-    user_id=$(/usr/xpg4/bin/id -u 2>/dev/null || echo 0)
-  else
-    user_id=$(id -u 2>/dev/null || echo 0)
-  fi
-  [ $user_id -eq 0 -a "$LEIN_ROOT" = "" ] && return 0
-  return 1
-}
-
-if check_root; then
-    echo "WARNING: You're currently running as root; probably by accident."
-    echo "Press control-C to abort or Enter to continue as root."
-    echo "Set LEIN_ROOT to disable this warning."
-    read _
-fi
-
 NOT_FOUND=1
 ORIGINAL_PWD="$PWD"
 while [ ! -r "$PWD/project.clj" ] && [ "$PWD" != "/" ] && [ $NOT_FOUND -ne 0 ]
@@ -150,7 +136,7 @@ done
 
 BIN_DIR="$(dirname "$SCRIPT")"
 
-export LEIN_JVM_OPTS="${LEIN_JVM_OPTS-"-XX:+TieredCompilation -XX:TieredStopAtLevel=1"}"
+export LEIN_JVM_OPTS="${LEIN_JVM_OPTS-"-Xverify:none -XX:+TieredCompilation -XX:TieredStopAtLevel=1"}"
 
 # This needs to be defined before we call HTTP_CLIENT below
 if [ "$HTTP_CLIENT" = "" ]; then
@@ -215,7 +201,9 @@ if [ -r "$BIN_DIR/../src/leiningen/version.clj" ]; then
 else # Not running from a checkout
     add_path CLASSPATH "$LEIN_JAR"
 
-    BOOTCLASSPATH="-Xbootclasspath/a:$LEIN_JAR"
+    if [ "$LEIN_USE_BOOTCLASSPATH" != "" ]; then
+        LEIN_JVM_OPTS="-Xbootclasspath/a:$LEIN_JAR $LEIN_JVM_OPTS"
+    fi
 
     if [ ! -r "$LEIN_JAR" -a "$1" != "self-install" ]; then
         self_install
@@ -224,7 +212,7 @@ fi
 
 if [ ! -x "$JAVA_CMD" ] && ! type -f java >/dev/null
 then
-    >&2 echo "Leiningen coundn't find 'java' executable, which is required."
+    >&2 echo "Leiningen couldn't find 'java' executable, which is required."
     >&2 echo "Please either set JAVA_CMD or put java (>=1.6) in your \$PATH ($PATH)."
     exit 1
 fi
@@ -285,7 +273,7 @@ elif [ "$1" = "upgrade" ] || [ "$1" = "downgrade" ]; then
             y|Y|"")
                 echo
                 echo "Upgrading..."
-                TARGET="/tmp/lein-$$-upgrade"
+                TARGET="/tmp/lein-${$}-upgrade"
                 if $cygwin; then
                     TARGET=$(cygpath -w "$TARGET")
                 fi
@@ -346,7 +334,7 @@ else
         else
             TRAMPOLINE_FILE="/tmp/lein-trampoline-$$"
         fi
-        trap "rm -f $TRAMPOLINE_FILE" EXIT
+        trap 'rm -f $TRAMPOLINE_FILE' EXIT
     fi
 
     if $cygwin; then
@@ -361,7 +349,6 @@ else
     else
         export TRAMPOLINE_FILE
         "$LEIN_JAVA_CMD" \
-            "${BOOTCLASSPATH[@]}" \
             -Dfile.encoding=UTF-8 \
             -Dmaven.wagon.http.ssl.easy=false \
             -Dmaven.wagon.rto=10000 \
@@ -377,11 +364,9 @@ else
           stty icanon echo > /dev/null 2>&1
         fi
 
-        ## TODO: [ -r "$TRAMPOLINE_FILE" ] may be redundant? A trampoline file
-        ## is always generated these days.
         if [ -r "$TRAMPOLINE_FILE" ] && [ "$LEIN_TRAMPOLINE_WARMUP" = "" ]; then
             TRAMPOLINE="$(cat "$TRAMPOLINE_FILE")"
-            if [ "$INPUT_CHECKSUM" = "" ]; then
+            if [ "$INPUT_CHECKSUM" = "" ]; then # not using fast trampoline
                 rm "$TRAMPOLINE_FILE"
             fi
             if [ "$TRAMPOLINE" = "" ]; then