diff --git a/setup.py b/setup.py
index 197f09a6c7564435adb18f4b9e367e39fba85952..e1d39458ea8d1b0b17ea12a82ebd7133b27b045a 100755
--- a/setup.py
+++ b/setup.py
@@ -158,12 +158,12 @@ def setup_package():
         python_requires='>=3.6',
         package_dir={'': 'src'},
         install_requires=['lxml>=3.6.4',
-                          'PyYaml>=3.12', 'future', 'PySocks>=1.6.7', "jsonschema"],
+                          'PyYaml>=3.12', 'future', 'PySocks>=1.6.7'],
         extras_require={'keyring': ['keyring>=13.0.0']},
         setup_requires=["pytest-runner>=2.0,<3dev"],
-        tests_require=["pytest", "pytest-cov", "coverage>=4.4.2", "jsonschema"],
+        tests_require=["pytest", "pytest-cov", "coverage>=4.4.2"],
         package_data={
-            'caosdb': ['cert/indiscale.ca.crt', 'schema-pycaosdb-ini.yml'],
+            'caosdb': ['cert/indiscale.ca.crt'],
         },
         scripts=["src/caosdb/utils/caosdb_admin.py"]
     )
diff --git a/src/caosdb/configuration.py b/src/caosdb/configuration.py
index 80422433e80f26d305cf1558155d0c140b773c02..842f1ee62a5b3178b7305e4c1e0c281a2dbd3b38 100644
--- a/src/caosdb/configuration.py
+++ b/src/caosdb/configuration.py
@@ -21,11 +21,6 @@
 #
 # ** end header
 #
-
-import os
-import yaml
-from jsonschema import validate
-
 try:
     # python2
     from ConfigParser import ConfigParser
@@ -52,9 +47,7 @@ def configure(inifile):
         _pycaosdbconf = None
     if _pycaosdbconf is None:
         _reset_config()
-    read_config = _pycaosdbconf.read(inifile)
-    validate_yaml_schema(config_to_yaml(_pycaosdbconf))
-    return read_config
+    return _pycaosdbconf.read(inifile)
 
 
 def get_config():
@@ -62,28 +55,6 @@ def get_config():
     return _pycaosdbconf
 
 
-def config_to_yaml(config):
-    valobj = {}
-    for s in config.sections():
-        valobj[s] = {}
-        for key, value in config[s].items():
-            # TODO: Can the type be inferred from the config object?
-            if key in ["timeout", "debug"]:
-                valobj[s][key] = int(value)
-            elif key in ["ssl_insecure"]:
-                valobj[s][key] = bool(value)
-            else:
-                valobj[s][key] = value
-
-    return valobj
-
-
-def validate_yaml_schema(valobj):
-    with open(os.path.join(os.path.dirname(__file__), "schema-pycaosdb-ini.yml")) as f:
-        schema = yaml.load(f, Loader=yaml.SafeLoader)
-    validate(instance=valobj, schema=schema["schema-pycaosdb-ini"])
-
-
 def _read_config_files():
     """Function to read config files from different paths. Checks for path in $PYCAOSDBINI or home directory (.pycaosdb.ini) and in the current working directory (pycaosdb.ini).
 
diff --git a/src/caosdb/schema-pycaosdb-ini.yml b/src/caosdb/schema-pycaosdb-ini.yml
deleted file mode 100644
index 977fcdfac98ec60003ea05c5d42a340139dd3efb..0000000000000000000000000000000000000000
--- a/src/caosdb/schema-pycaosdb-ini.yml
+++ /dev/null
@@ -1,87 +0,0 @@
-schema-pycaosdb-ini:
-  type: object
-  additionalProperties: false
-  properties:
-    Container:
-      additionalProperties: false
-      properties:
-        debug:
-          default: 0
-          type: integer
-          enum: [0, 1, 2]
-    Connection:
-      description: Settings for the connection to the CaosDB server
-      additionalProperties: false
-      properties:
-        url:
-          description: URL of the CaosDB server
-          type: string
-          pattern: https://[-a-zA-Z0-9\.]+(:[0-9]+)?/
-          examples: [https://demo.indiscale.com/, https://localhost:10443/]
-        username:
-          type: string
-          description: User name used for authentication with the server
-          examples: [admin]
-        password_method:
-          description: The password input method defines how the password is supplied that is used for authentication with the server.
-          type: string
-          default: input
-          enum: [input, plain, pass, keyring]
-        password_identifier:
-          type: string
-        password:
-          type: string
-          examples: [caosdb]
-        auth_token:
-          type: string
-          description: Using an authentication token to connect with the server. This setting is not recommended for users.
-        cacert:
-          type: string
-          description: If the server's SSL certificate cannot be validated by your installed certificates (default or installed by your admins), you may also need to supply the matching key (pem file)
-          examples: [/path/to/caosdb.ca.pem]
-        ssl_insecure:
-          description: If this option is set, the SSL certificate of the server will not be validated. This has the potential of a man-in-the-middle attack. Use with care!
-          type: boolean
-          default: false
-        ssl_version:
-            description: You may define the ssl version to be used. It has to be the name of the corresponding attribute in the Python ssl module.
-            examples: [PROTOCOL_TLS]
-        debug:
-          default: 0
-          type: integer
-          enum: [0, 1, 2]
-          description: The debug key allows control the verbosity. Set it to 1 or 2 in case you  want to see debugging output or if you want to learn more about the internals of the protocol.  0 disables debugging output.
-        socket_proxy:
-          examples: [localhost:12345]
-          type: string
-          description: You can define a socket proxy to be used. This is for the case that the server sits behind a firewall which is being tunnelled with a socket proxy (SOCKS4 or SOCKS5) (e.g. via ssh's -D option or a dedicated proxy server).
-        implementation:
-          description: This option is used internally and for testing. Do not override.
-          examples: [_DefaultCaosDBServerConnection]
-        timeout:
-          type: integer
-      allOf:
-        - if:
-            properties:
-              password_method:
-                const: input
-          then:
-            required: [url]
-        - if:
-            properties:
-              password_method:
-                const: plain
-          then:
-            required: [url, username, password]
-        - if:
-            properties:
-              password_method:
-                const: pass
-          then:
-            required: [url, username, password_identifier]
-        - if:
-            properties:
-              password_method:
-                const: keyring
-          then:
-            required: [url, username]
diff --git a/unittests/broken_configs/pycaosdb-indiscale-demo.ini b/unittests/broken_configs/pycaosdb-indiscale-demo.ini
deleted file mode 100644
index d8994eaecfd1cccbb3e636fa7845cf6be61fe037..0000000000000000000000000000000000000000
--- a/unittests/broken_configs/pycaosdb-indiscale-demo.ini
+++ /dev/null
@@ -1,12 +0,0 @@
-[Connection]
-url=https://demo.indiscale.com
-username=admin
-password=caosdb
-password_method=plain
-cacert=/etc/ssl/cert.pem
-
-timeout=10000
-debug=0
-
-[Container]
-debug=0
\ No newline at end of file
diff --git a/unittests/broken_configs/pycaosdb1.ini b/unittests/broken_configs/pycaosdb1.ini
deleted file mode 100644
index 71180286881399c35e251bba89a54a345cd948ac..0000000000000000000000000000000000000000
--- a/unittests/broken_configs/pycaosdb1.ini
+++ /dev/null
@@ -1,5 +0,0 @@
-[Connection]
-cacert=/very/long/path/to/self/signed/pem/file/caosdb.ca.pem
-url=https://hostname:8833/playground
-username=username
-password_method=pass
diff --git a/unittests/broken_configs/pycaosdb2.ini b/unittests/broken_configs/pycaosdb2.ini
deleted file mode 100644
index 6bdf58ea812b83a622e647b2a18b01bb1a1e3099..0000000000000000000000000000000000000000
--- a/unittests/broken_configs/pycaosdb2.ini
+++ /dev/null
@@ -1,9 +0,0 @@
-[Connection]
-url=https://0.0.0.0/
-username=username
-password_identifier=SECTION/SUBSECTION/identifier
-password_method=pass
-cacert=/etc/ssl/cert.pem
-ssl_insecure=true
-timeout=10000
-debug=9
diff --git a/unittests/broken_configs/pycaosdb3.ini b/unittests/broken_configs/pycaosdb3.ini
deleted file mode 100644
index 62d1fed9497c0c258c13aa2ed8fecb23a3006849..0000000000000000000000000000000000000000
--- a/unittests/broken_configs/pycaosdb3.ini
+++ /dev/null
@@ -1,12 +0,0 @@
-[connection]
-ssl_insecure=true
-url=https://localhost:10443/
-password=caosdb
-username=admin
-password_method=plain
-
-timeout=10000
-debug=0
-
-[Container]
-debug=0
diff --git a/unittests/broken_configs/pycaosdb4.ini b/unittests/broken_configs/pycaosdb4.ini
deleted file mode 100644
index e96604ac453ff2be4e2b419aa9ccbbf3598fa231..0000000000000000000000000000000000000000
--- a/unittests/broken_configs/pycaosdb4.ini
+++ /dev/null
@@ -1,10 +0,0 @@
-[Connection]
-ssl_insecure=true
-url=https://localhost:10443/
-password=caosdb
-username=admin
-password_method=plain
-
-timeout=10000
-debug=0
-key=bla
\ No newline at end of file
diff --git a/unittests/test_configs/pycaosdb-indiscale-demo.ini b/unittests/test_configs/pycaosdb-indiscale-demo.ini
deleted file mode 100644
index 9010343467f78c7c9c3e25ea3a57520deac18c8e..0000000000000000000000000000000000000000
--- a/unittests/test_configs/pycaosdb-indiscale-demo.ini
+++ /dev/null
@@ -1,12 +0,0 @@
-[Connection]
-url=https://demo.indiscale.com/
-username=admin
-password=caosdb
-password_method=plain
-cacert=/etc/ssl/cert.pem
-
-timeout=10000
-debug=0
-
-[Container]
-debug=0
\ No newline at end of file
diff --git a/unittests/test_configs/pycaosdb1.ini b/unittests/test_configs/pycaosdb1.ini
deleted file mode 100644
index dcfa7c21fac735d81ab92b33f0abd31df25fc1ad..0000000000000000000000000000000000000000
--- a/unittests/test_configs/pycaosdb1.ini
+++ /dev/null
@@ -1,6 +0,0 @@
-[Connection]
-cacert=/very/long/path/to/self/signed/pem/file/caosdb.ca.pem
-url=https://hostname:8833/playground
-password_identifier=SECTION/caosdb
-username=username
-password_method=pass
diff --git a/unittests/test_configs/pycaosdb2.ini b/unittests/test_configs/pycaosdb2.ini
deleted file mode 100644
index e5493bde3be0f84f38e427edb4d42fba9c75482d..0000000000000000000000000000000000000000
--- a/unittests/test_configs/pycaosdb2.ini
+++ /dev/null
@@ -1,9 +0,0 @@
-[Connection]
-url=https://0.0.0.0/
-username=username
-password_identifier=SECTION/SUBSECTION/identifier
-password_method=pass
-cacert=/etc/ssl/cert.pem
-ssl_insecure=true
-timeout=10000
-debug=0
diff --git a/unittests/test_configs/pycaosdb3.ini b/unittests/test_configs/pycaosdb3.ini
deleted file mode 100644
index 6c4934039c99855566f38c69f7511d774f81efbd..0000000000000000000000000000000000000000
--- a/unittests/test_configs/pycaosdb3.ini
+++ /dev/null
@@ -1,12 +0,0 @@
-[Connection]
-ssl_insecure=true
-url=https://localhost:10443/
-password=caosdb
-username=admin
-password_method=plain
-
-timeout=10000
-debug=0
-
-[Container]
-debug=0
diff --git a/unittests/test_schema.py b/unittests/test_schema.py
deleted file mode 100644
index 387518c9a30aac45facc24d77ea8c8532a4a8b16..0000000000000000000000000000000000000000
--- a/unittests/test_schema.py
+++ /dev/null
@@ -1,26 +0,0 @@
-#!/bin/python
-# Test configuration schema
-# A. Schlemmer, 01/2021
-
-from jsonschema.exceptions import ValidationError
-from pytest import raises
-from glob import glob
-import os
-from caosdb.configuration import config_to_yaml, validate_yaml_schema
-from configparser import ConfigParser
-
-
-def test_config_files():
-    for fn in glob(os.path.join(os.path.dirname(__file__), "test_configs", "*.ini")):
-        c = ConfigParser()
-        c.read(fn)
-        validate_yaml_schema(config_to_yaml(c))
-
-
-def test_broken_config_files():
-    for fn in glob(os.path.join(os.path.dirname(__file__), "broken_configs", "*.ini")):
-        print(fn)
-        with raises(ValidationError):
-            c = ConfigParser()
-            c.read(fn)
-            validate_yaml_schema(config_to_yaml(c))