diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4520c311..7578eb77 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -143,6 +143,8 @@ jobs:
                   {ecaptcha, ".*", {git, "https://github.com/seriyps/ecaptcha", {branch, "master"}}}, \
                   {fusco, ".*", {git, "https://github.com/esl/fusco", {branch, "master"}}}, \
                   {observer_cli, ".*", {git, "https://github.com/zhongwencool/observer_cli", {branch, "master"}}}, \
+                  {prometheus, ".*", {git, "https://github.com/deadtrickster/prometheus.erl", {branch, "master"}}}, \
+                  {quantile_estimator, ".*", {git, "https://github.com/deadtrickster/quantile_estimator", {branch, "master"}}}, \
                   {recon, ".*", {git, "https://github.com/ferd/recon", {branch, "master"}}}, \
                  |g' rebar.config
         sed -i 's|stdlib, |stdlib, cuesport, ecaptcha, fusco, observer_cli, recon, |g' rebar.config