diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index c7e8291d81..ce1b69692d 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -8,7 +8,9 @@ variables: &global_variables
   MIX_ENV: test
 
 cache: &global_cache_policy
-  key: ${CI_COMMIT_REF_SLUG}
+  key:
+    files:
+      - mix.lock
   paths:
     - deps
     - _build
@@ -59,7 +61,7 @@ benchmark:
 
 unit-testing:
   stage: test
-  retry: 2
+  # retry: 2
   cache: &testing_cache_policy
     <<: *global_cache_policy
     policy: pull
@@ -91,24 +93,24 @@ unit-testing:
 #     - epmd -daemon
 #     - mix test --trace --only federated
 
-unit-testing-rum:
-  stage: test
-  retry: 2
-  cache: *testing_cache_policy
-  services:
-  - name: minibikini/postgres-with-rum:12
-    alias: postgres
-    command: ["postgres", "-c", "fsync=off", "-c", "synchronous_commit=off", "-c", "full_page_writes=off"]
-  variables:
-    <<: *global_variables
-    RUM_ENABLED: "true"
-  script:
-    - apt-get update && apt-get install -y libimage-exiftool-perl ffmpeg
-    - mix deps.get
-    - mix ecto.create
-    - mix ecto.migrate
-    - "mix ecto.migrate --migrations-path priv/repo/optional_migrations/rum_indexing/"
-    - mix test --preload-modules
+# unit-testing-rum:
+#   stage: test
+#   retry: 2
+#   cache: *testing_cache_policy
+#   services:
+#   - name: minibikini/postgres-with-rum:12
+#     alias: postgres
+#     command: ["postgres", "-c", "fsync=off", "-c", "synchronous_commit=off", "-c", "full_page_writes=off"]
+#   variables:
+#     <<: *global_variables
+#     RUM_ENABLED: "true"
+#   script:
+#     - apt-get update && apt-get install -y libimage-exiftool-perl ffmpeg
+#     - mix deps.get
+#     - mix ecto.create
+#     - mix ecto.migrate
+#     - "mix ecto.migrate --migrations-path priv/repo/optional_migrations/rum_indexing/"
+#     - mix test --preload-modules
 
 lint:
   stage: test
@@ -175,8 +177,8 @@ spec-deploy:
     - apk add curl
   script:
     - curl -X POST -F"token=$API_DOCS_PIPELINE_TRIGGER" -F'ref=master' -F"variables[BRANCH]=$CI_COMMIT_REF_NAME" -F"variables[JOB_REF]=$CI_JOB_ID" https://git.pleroma.social/api/v4/projects/1130/trigger/pipeline
-  
- 
+
+
 stop_review_app:
   image: alpine:3.9
   stage: deploy
@@ -235,7 +237,7 @@ amd64-musl:
   stage: release
   artifacts: *release-artifacts
   only: *release-only
-  image: elixir:1.10.3-alpine 
+  image: elixir:1.10.3-alpine
   cache: *release-cache
   variables: *release-variables
   before_script: &before-release-musl
@@ -393,4 +395,4 @@ docker-adhoc:
   tags:
     - dind
   only:
-    - /^build-docker/.*$/@pleroma/pleroma
\ No newline at end of file
+    - /^build-docker/.*$/@pleroma/pleroma
diff --git a/test/pleroma/gun/connection_pool_test.exs b/test/pleroma/gun/connection_pool_test.exs
index 4b31586256..6ccd944846 100644
--- a/test/pleroma/gun/connection_pool_test.exs
+++ b/test/pleroma/gun/connection_pool_test.exs
@@ -46,6 +46,8 @@ test "gives the same connection to 2 concurrent requests" do
       end
   end
 
+  @tag :skip
+  # https://git.pleroma.social/pleroma/pleroma/-/issues/2628
   test "connection limit is respected with concurrent requests" do
     clear_config([:connections_pool, :max_connections]) do
       clear_config([:connections_pool, :max_connections], 1)