diff --git a/.github/workflows/erlang.yml b/.github/workflows/erlang.yml
index 1aa8894..c7cd909 100644
--- a/.github/workflows/erlang.yml
+++ b/.github/workflows/erlang.yml
@@ -6,15 +6,16 @@ env:
   ERL_FLAGS: "-enable-feature all"
 
 jobs:
-
   build:
-
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
 
     strategy:
       matrix:
-        otp: ['25.2.1']
-        rebar: ['3.20.0']
+        include:
+          - otp: '25.2.1'
+            rebar: '3.20.0'
+          - otp: '27.3.4'
+            rebar: '3.24.0'
 
     steps:
     - uses: actions/checkout@v3
@@ -22,9 +23,9 @@ jobs:
       id: setup-beam
       with:
         otp-version: ${{matrix.otp}}
-        rebar3-version: '3.20.0'
+        rebar3-version: ${{matrix.rebar}}
     - name: Restore _build
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       with:
         path: _build
         key: "_build-cache-for\
@@ -33,7 +34,7 @@ jobs:
               -rebar3-${{steps.setup-beam.outputs.rebar3-version}}\
               -hash-${{hashFiles('rebar.lock')}}"
     - name: Restore rebar3's cache
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       with:
         path: ~/.cache/rebar3
         key: "rebar3-cache-for\
diff --git a/.gitignore b/.gitignore
index 7cb45c8..697b7ea 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,5 @@ _build/
 *.beam
 *.plt
 erl_crash.dump
+.idea/
+*.iml
diff --git a/src/mero_cluster.erl b/src/mero_cluster.erl
index 20ba9d6..658ff4a 100644
--- a/src/mero_cluster.erl
+++ b/src/mero_cluster.erl
@@ -119,6 +119,28 @@
               {mero_cluster_util, worker_by_index, 3},
               {mero_cluster_util, module_info, 1}]).
 
+%% OTP 27 improved dialyzer and now it's complaining
+%% about functions of a dynamic compiled module.
+-if(?OTP_RELEASE >= 27).
+
+-dialyzer({[no_unknown],
+           [child_definitions/1,
+            sup_by_cluster_name/1,
+            cluster_shards/1,
+            workers_per_shard/1,
+            pool_worker_module/1,
+            sharding_algorithm/1,
+            one_pool_of_each_shard_of_cluster/1,
+            random_pool_of_shard/2,
+            total_workers/1,
+            shard_identifier/2,
+            version/0,
+            clusters/0]}).
+
+- else .
+
+-endif.
+
 -type child_definitions() ::
     [{Host :: string(),
       Port :: pos_integer(),
diff --git a/test/mero_conf_SUITE.erl b/test/mero_conf_SUITE.erl
index 78a5e5d..19f2013 100644
--- a/test/mero_conf_SUITE.erl
+++ b/test/mero_conf_SUITE.erl
@@ -89,7 +89,7 @@ init_per_testcase(_, Conf) ->
 end_per_testcase(diff, _Conf) ->
     ok;
 end_per_testcase(_, _Conf) ->
-    dbg:stop_clear(),
+    dbg:stop(),
     meck:unload([mero_elasticache]),
     ok.