diff --git a/CHANGELOG.md b/CHANGELOG.md
index ba94bce40f376a2db759add7eb9fa5d5264d3429..6e40466ac3e572f0822f3fef8b3dfd76d4bafa41 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,6 +14,8 @@ with the `YY.MINOR.MICRO` scheme.
 
 - New alter system parameters - `vdbe_max_steps` and `vtable_max_rows`.
 
+- Default config name is `picodata.yaml`.
+
 ### CLI
 
 - `picodata expel` takes instance uuid instead of instance name.
diff --git a/src/cli/args.rs b/src/cli/args.rs
index 176e7a9c1e74ea55f083429a337883f897546660..19d6cdd74fe904ae0ba6fb169148ecbda4c583fc 100644
--- a/src/cli/args.rs
+++ b/src/cli/args.rs
@@ -49,7 +49,7 @@ pub struct Run {
     #[clap(long, value_name = "PATH", env = "PICODATA_CONFIG_FILE")]
     /// Path to configuration file in yaml format.
     ///
-    /// By default "./config.yaml" is used if it exists.
+    /// By default "./picodata.yaml" is used if it exists.
     pub config: Option<PathBuf>,
 
     #[clap(
@@ -60,7 +60,7 @@ pub struct Run {
     )]
     /// A list of key-value pairs specifying configuration parameters.
     ///
-    /// These will override both parameters provided in the config.yaml file,
+    /// These will override both parameters provided in the picodata.yaml file,
     /// the command-line parameters and the environment variables.
     ///
     /// Key is a `.` separated path to a configuration parameter.
diff --git a/src/config.rs b/src/config.rs
index 6e40470af8ae756976d7a115c0502f13bf64bd45..0a494873cceb6ef7425c6d7c157dfa725b41f631 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -36,7 +36,7 @@ use tarantool::tuple::Tuple;
 pub use sbroad::ir::relation::Type as SbroadType;
 
 pub use crate::address::{DEFAULT_IPROTO_PORT, DEFAULT_LISTEN_HOST, DEFAULT_USERNAME};
-pub const DEFAULT_CONFIG_FILE_NAME: &str = "config.yaml";
+pub const DEFAULT_CONFIG_FILE_NAME: &str = "picodata.yaml";
 
 ////////////////////////////////////////////////////////////////////////////////
 // PicodataConfig
@@ -432,7 +432,7 @@ Using configuration file '{args_path}'.");
         // TODO: for future compatibility this is a very bad approach. Image if
         // you will this scenario, picodata 69.3 has added a new parameter
         // "maximum_security" and now we want to add it to the config file.
-        // But we have a config.yaml file for picodata 42.8 which is already deployed,
+        // But we have a picodata.yaml file for picodata 42.8 which is already deployed,
         // we add the new parameter to that config and then we try to start the
         // old picodata with the new config, and what we get? Error. Now you
         // have to go and copy-paste all of your config files and have at least
diff --git a/test/conftest.py b/test/conftest.py
index 23dc184a31b94f947be90d392d47db312eff6961..5af868c089541946fd173fc25e869f53f6e1431f 100644
--- a/test/conftest.py
+++ b/test/conftest.py
@@ -1645,7 +1645,7 @@ class Cluster:
         assert config or yaml
         assert self.config_path is None
 
-        self.config_path = self.data_dir + "/config.yaml"
+        self.config_path = self.data_dir + "/picodata.yaml"
 
         if config:
             yaml = yaml_lib.dump(config, default_flow_style=False)
diff --git a/test/int/test_config_file.py b/test/int/test_config_file.py
index c6dabb0fe90dd4f7faa7bc42bd5ab54687e48db0..e8471de112bbc325a6e5ca9905945b32269bdde7 100644
--- a/test/int/test_config_file.py
+++ b/test/int/test_config_file.py
@@ -135,10 +135,10 @@ instance:
 def test_default_path_to_config_file(cluster: Cluster):
     instance = cluster.add_instance(name=False, wait_online=False)
 
-    # By default ./config.yaml will be used in the instance's current working directory
+    # By default ./picodata.yaml will be used in the instance's current working directory
     work_dir = cluster.data_dir + "/work-dir"
     os.mkdir(work_dir)
-    with open(work_dir + "/config.yaml", "w") as f:
+    with open(work_dir + "/picodata.yaml", "w") as f:
         f.write(
             """
 cluster:
@@ -157,7 +157,7 @@ instance:
     instance.terminate()
 
     # But if a config is specified explicitly, it will be used instead
-    config_path = cluster.data_dir + "/explicit-config.yaml"
+    config_path = cluster.data_dir + "/explicit-picodata.yaml"
     with open(config_path, "w") as f:
         f.write(
             """
@@ -174,7 +174,7 @@ instance:
 
     msg = f"""\
 A path to configuration file '{config_path}' was provided explicitly,
-but a 'config.yaml' file in the current working directory '{work_dir}' also exists.
+but a 'picodata.yaml' file in the current working directory '{work_dir}' also exists.
 Using configuration file '{config_path}'.
 """  # noqa E501
     crawler = log_crawler(instance, msg)