diff --git a/.circleci/config.yml b/.circleci/config.yml
index 6e6c87338970..6289d602f15a 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -499,6 +499,14 @@ step-maybe-generate-typescript-defs: &step-maybe-generate-typescript-defs
         npm run create-typescript-definitions
       fi
 
+step-fix-known-hosts-linux: &step-fix-known-hosts-linux
+  run:
+    name: Fix Known Hosts on Linux
+    command: |
+      if [ "`uname`" == "Linux" ]; then
+        ./src/electron/.circleci/fix-known-hosts.sh
+      fi
+
 # Lists of steps.
 steps-lint: &steps-lint
   steps:
@@ -795,6 +803,7 @@ steps-tests: &steps-tests
     - *step-setup-linux-for-headless-testing
     - *step-restore-brew-cache
     - *step-install-nodejs-on-mac
+    - *step-fix-known-hosts-linux
 
     - run:
         name: Run Electron tests
diff --git a/.circleci/fix-known-hosts.sh b/.circleci/fix-known-hosts.sh
new file mode 100755
index 000000000000..d6d36e791ad5
--- /dev/null
+++ b/.circleci/fix-known-hosts.sh
@@ -0,0 +1,7 @@
+#!/bin/bash
+
+set -e
+
+mkdir -p ~/.ssh
+echo "|1|B3r+7aO0/x90IdefihIjxIoJrrk=|OJddGDfhbuLFc1bUyy84hhIw57M= ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAq2A7hRGmdnm9tUDbO9IDSwBK6TbQa+PXYPCPy6rbTrTtw7PHkccKrpp0yVhp5HdEIcKr6pLlVDBfOLX9QUsyCOV0wzfjIJNlGEYsdlLJizHhbn2mUjvSAHQqZETYP81eFzLQNnPHt4EVVUh7VfDESU84KezmD5QlWpXLmvU31/yMf+Se8xhHTvKSCZIFImWwoG6mbUoWf9nzpIoaSjB+weqqUUmpaaasXVal72J+UX2B+2RPW3RcT0eOzQgqlJL3RKrTJvdsjE3JEAvGq3lGHSZXy28G3skua2SmVi/w4yCE6gbODqnTWlg7+wC604ydGXA8VJiS5ap43JXiUFFAaQ==
+|1|rGlEvW55DtzNZp+pzw9gvyOyKi4=|LLWr+7qlkAlw3YGGVfLHHxB/kR0= ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAq2A7hRGmdnm9tUDbO9IDSwBK6TbQa+PXYPCPy6rbTrTtw7PHkccKrpp0yVhp5HdEIcKr6pLlVDBfOLX9QUsyCOV0wzfjIJNlGEYsdlLJizHhbn2mUjvSAHQqZETYP81eFzLQNnPHt4EVVUh7VfDESU84KezmD5QlWpXLmvU31/yMf+Se8xhHTvKSCZIFImWwoG6mbUoWf9nzpIoaSjB+weqqUUmpaaasXVal72J+UX2B+2RPW3RcT0eOzQgqlJL3RKrTJvdsjE3JEAvGq3lGHSZXy28G3skua2SmVi/w4yCE6gbODqnTWlg7+wC604ydGXA8VJiS5ap43JXiUFFAaQ==" >> ~/.ssh/known_hosts