diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8b17b1a04..76adcc951 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,10 +4,14 @@
 
 - Nitrite now supports JPMS. It is now modular and can be used in Java 9 or above.
 - Version upgrade for several dependencies
+- Repository type validation can be disabled in `NitriteBuilder` as a fix for #966
 
 ### Issue Fixes
 
 - Fix for #935
+- Fix for #948
+- Fix for #961
+- Fix for #966
 
 ## Release 4.2.2 - Mar 5, 2024
 
diff --git a/nitrite/src/main/java/org/dizitart/no2/NitriteBuilder.java b/nitrite/src/main/java/org/dizitart/no2/NitriteBuilder.java
index 84625e245..35373d9de 100644
--- a/nitrite/src/main/java/org/dizitart/no2/NitriteBuilder.java
+++ b/nitrite/src/main/java/org/dizitart/no2/NitriteBuilder.java
@@ -31,8 +31,8 @@
  * @see Nitrite
  * @since 1.0
  */
+@Getter
 public class NitriteBuilder {
-    @Getter
     /**
      * The Nitrite configuration object.
      */
@@ -61,6 +61,27 @@ public NitriteBuilder fieldSeparator(String separator) {
         return this;
     }
 
+    /**
+     * Disables the repository type validation for the Nitrite database.
+     * <p>
+     * Repository type validation is a feature in Nitrite that ensures the type of the objects
+     * stored in the repository can be converted to and from {@link org.dizitart.no2.collection.Document}.
+     * <p>
+     * By default, the repository type validation is enabled. If you disable it, and if you try to
+     * store an object that cannot be converted to a {@link org.dizitart.no2.collection.Document},
+     * then Nitrite will throw an exception during the operation.
+     *
+     * @return the NitriteBuilder instance with repository type validation disabled
+     * @see org.dizitart.no2.collection.Document
+     * @see org.dizitart.no2.repository.ObjectRepository
+     * @see org.dizitart.no2.common.mapper.EntityConverter
+     * @since 4.3.0
+     */
+    public NitriteBuilder disableRepositoryTypeValidation() {
+        this.nitriteConfig.disableRepositoryTypeValidation();
+        return this;
+    }
+
     /**
      * Registers an {@link EntityConverter} with the Nitrite database.
      * An {@link EntityConverter} is used to convert between an entity and a
diff --git a/nitrite/src/main/java/org/dizitart/no2/NitriteConfig.java b/nitrite/src/main/java/org/dizitart/no2/NitriteConfig.java
index ae8f3ac40..0c2d043b9 100644
--- a/nitrite/src/main/java/org/dizitart/no2/NitriteConfig.java
+++ b/nitrite/src/main/java/org/dizitart/no2/NitriteConfig.java
@@ -79,6 +79,12 @@ public class NitriteConfig implements AutoCloseable {
      */
     private Integer schemaVersion = Constants.INITIAL_SCHEMA_VERSION;
 
+    @Getter
+    /**
+     * Indicates if repository type validation is disabled.
+     */
+    private boolean repositoryTypeValidationDisabled = false;
+
     /**
      * Instantiates a new {@link NitriteConfig}.
      */
@@ -103,6 +109,20 @@ public void fieldSeparator(String separator) {
         NitriteConfig.fieldSeparator = separator;
     }
 
+    /**
+     * Disables repository type validation.
+     *
+     * @throws InvalidOperationException if the repository type validation is attempted to be
+     *                                   changed after database initialization.
+     */
+    public void disableRepositoryTypeValidation() {
+        if (configured) {
+            throw new InvalidOperationException("Cannot change repository type validation after database" +
+                    " initialization");
+        }
+        this.repositoryTypeValidationDisabled = true;
+    }
+
     /**
      * Registers an {@link EntityConverter} with the Nitrite database.
      *
@@ -157,7 +177,7 @@ public NitriteConfig addMigration(Migration migration) {
             TreeMap<Integer, Migration> targetMap = migrations.computeIfAbsent(start, k -> new TreeMap<>());
             Migration existing = targetMap.get(end);
             if (existing != null) {
-                log.warn("Overriding migration " + existing + " with " + migration);
+                log.warn("Overriding migration {} with {}", existing, migration);
             }
             targetMap.put(end, migration);
         }
diff --git a/nitrite/src/main/java/org/dizitart/no2/common/util/ValidationUtils.java b/nitrite/src/main/java/org/dizitart/no2/common/util/ValidationUtils.java
index 6adfcb860..2c664eb53 100644
--- a/nitrite/src/main/java/org/dizitart/no2/common/util/ValidationUtils.java
+++ b/nitrite/src/main/java/org/dizitart/no2/common/util/ValidationUtils.java
@@ -16,6 +16,7 @@
 
 package org.dizitart.no2.common.util;
 
+import org.dizitart.no2.NitriteConfig;
 import org.dizitart.no2.collection.Document;
 import org.dizitart.no2.common.mapper.NitriteMapper;
 import org.dizitart.no2.exceptions.IndexingException;
@@ -149,7 +150,7 @@ public static void validateProjectionType(Class<?> type, NitriteMapper nitriteMa
         }
     }
 
-    public static void validateRepositoryType(Class<?> type, NitriteMapper nitriteMapper) {
+    public static void validateRepositoryType(Class<?> type, NitriteConfig nitriteConfig) {
         Object value;
         try {
             if (type.isInterface() || (Modifier.isAbstract(type.getModifiers()) && !isBuiltInValueType(type))) {
@@ -157,14 +158,17 @@ public static void validateRepositoryType(Class<?> type, NitriteMapper nitriteMa
                 return;
             }
 
-            value = newInstance(type, false, nitriteMapper);
-            if (value == null) {
-                throw new ValidationException("Cannot create new instance of type " + type);
-            }
-
-            Document document = (Document) nitriteMapper.tryConvert(value, Document.class);
-            if (document == null || document.size() == 0) {
-                throw new ValidationException("Cannot convert to document from type " + type);
+            if (!nitriteConfig.isRepositoryTypeValidationDisabled()) {
+                NitriteMapper nitriteMapper = nitriteConfig.nitriteMapper();
+                value = newInstance(type, false, nitriteMapper);
+                if (value == null) {
+                    throw new ValidationException("Cannot create new instance of type " + type);
+                }
+
+                Document document = (Document) nitriteMapper.tryConvert(value, Document.class);
+                if (document == null || document.size() == 0) {
+                    throw new ValidationException("Cannot convert to document from type " + type);
+                }
             }
         } catch (Exception e) {
             throw new ValidationException("Invalid repository type", e);
diff --git a/nitrite/src/main/java/org/dizitart/no2/repository/RepositoryFactory.java b/nitrite/src/main/java/org/dizitart/no2/repository/RepositoryFactory.java
index 06a7c302f..2d2cf72f5 100644
--- a/nitrite/src/main/java/org/dizitart/no2/repository/RepositoryFactory.java
+++ b/nitrite/src/main/java/org/dizitart/no2/repository/RepositoryFactory.java
@@ -19,7 +19,6 @@
 import org.dizitart.no2.NitriteConfig;
 import org.dizitart.no2.collection.CollectionFactory;
 import org.dizitart.no2.collection.NitriteCollection;
-import org.dizitart.no2.common.mapper.NitriteMapper;
 import org.dizitart.no2.common.util.StringUtils;
 import org.dizitart.no2.exceptions.NitriteIOException;
 import org.dizitart.no2.exceptions.ValidationException;
@@ -133,10 +132,9 @@ public void clear() {
 
     private <T> ObjectRepository<T> createRepository(NitriteConfig nitriteConfig, Class<T> type,
                                                      String collectionName, String key) {
-        NitriteMapper nitriteMapper = nitriteConfig.nitriteMapper();
         NitriteStore<?> store = nitriteConfig.getNitriteStore();
 
-        validateRepositoryType(type, nitriteMapper);
+        validateRepositoryType(type, nitriteConfig);
 
         if (store.getCollectionNames().contains(collectionName)) {
             throw new ValidationException("A collection with same entity name already exists");
@@ -154,14 +152,13 @@ private <T> ObjectRepository<T> createRepository(NitriteConfig nitriteConfig, Cl
     private <T> ObjectRepository<T> createRepositoryByDecorator(NitriteConfig nitriteConfig,
                                                                 EntityDecorator<T> entityDecorator,
                                                                 String collectionName, String key) {
-        NitriteMapper nitriteMapper = nitriteConfig.nitriteMapper();
         NitriteStore<?> store = nitriteConfig.getNitriteStore();
 
         if (store.getCollectionNames().contains(collectionName)) {
             throw new ValidationException("A collection with same entity name already exists");
         }
 
-        validateRepositoryType(entityDecorator.getEntityType(), nitriteMapper);
+        validateRepositoryType(entityDecorator.getEntityType(), nitriteConfig);
 
         NitriteCollection nitriteCollection = collectionFactory.getCollection(collectionName,
             nitriteConfig, false);
diff --git a/nitrite/src/test/java/org/dizitart/no2/common/util/ValidationUtilsTest.java b/nitrite/src/test/java/org/dizitart/no2/common/util/ValidationUtilsTest.java
index 5a8e0b17d..5cc36012e 100644
--- a/nitrite/src/test/java/org/dizitart/no2/common/util/ValidationUtilsTest.java
+++ b/nitrite/src/test/java/org/dizitart/no2/common/util/ValidationUtilsTest.java
@@ -16,6 +16,7 @@
 
 package org.dizitart.no2.common.util;
 
+import org.dizitart.no2.NitriteConfig;
 import org.dizitart.no2.common.mapper.SimpleNitriteMapper;
 import org.dizitart.no2.exceptions.ValidationException;
 import org.dizitart.no2.integration.Retry;
@@ -96,18 +97,19 @@ public void testValidateProjectionType() {
 
     @Test
     public void testValidateRepositoryType() {
-        SimpleNitriteMapper documentMapper = new SimpleNitriteMapper();
-        documentMapper.registerEntityConverter(new ClassA.ClassAConverter());
-        documentMapper.registerEntityConverter(new ClassBConverter());
-        documentMapper.registerEntityConverter(new EmptyClass.Converter());
+        NitriteConfig nitriteConfig = new NitriteConfig();
+        nitriteConfig.registerEntityConverter(new ClassA.ClassAConverter());
+        nitriteConfig.registerEntityConverter(new ClassBConverter());
+        nitriteConfig.registerEntityConverter(new EmptyClass.Converter());
+        nitriteConfig.autoConfigure();
 
-        validateRepositoryType(ClassA.class, documentMapper);
+        validateRepositoryType(ClassA.class, nitriteConfig);
 
-        assertThrows(ValidationException.class, () -> validateRepositoryType(EmptyClass.class, documentMapper));
-        assertThrows(ValidationException.class, () -> validateRepositoryType(ClassC.class, documentMapper));
-        assertThrows(ValidationException.class, () -> validateRepositoryType(String.class, documentMapper));
-        assertThrows(ValidationException.class, () -> validateRepositoryType(Number.class, documentMapper));
-        assertThrows(ValidationException.class, () -> validateRepositoryType(Integer.class, documentMapper));
-        assertThrows(ValidationException.class, () -> validateRepositoryType(Object.class, documentMapper));
+        assertThrows(ValidationException.class, () -> validateRepositoryType(EmptyClass.class, nitriteConfig));
+        assertThrows(ValidationException.class, () -> validateRepositoryType(ClassC.class, nitriteConfig));
+        assertThrows(ValidationException.class, () -> validateRepositoryType(String.class, nitriteConfig));
+        assertThrows(ValidationException.class, () -> validateRepositoryType(Number.class, nitriteConfig));
+        assertThrows(ValidationException.class, () -> validateRepositoryType(Integer.class, nitriteConfig));
+        assertThrows(ValidationException.class, () -> validateRepositoryType(Object.class, nitriteConfig));
     }
 }
diff --git a/pom.xml b/pom.xml
index 3a0fed525..bcf2cc4d6 100644
--- a/pom.xml
+++ b/pom.xml
@@ -62,6 +62,7 @@
         <commons-io.version>2.16.1</commons-io.version>
         <kotlin.version>1.9.24</kotlin.version>
         <kotlinx-serialization.version>1.6.3</kotlinx-serialization.version>
+        <kotlinx-datetime.version>0.6.0-RC.2</kotlinx-datetime.version>
         <lombok.version>1.18.32</lombok.version>
         <lombok-maven-plugin.version>1.18.20.0</lombok-maven-plugin.version>
         <junit.version>4.13.2</junit.version>
@@ -291,6 +292,12 @@
                 <version>${kotlin.version}</version>
                 <scope>test</scope>
             </dependency>
+            <dependency>
+                <groupId>org.jetbrains.kotlinx</groupId>
+                <artifactId>kotlinx-datetime-jvm</artifactId>
+                <version>${kotlinx-datetime.version}</version>
+                <scope>test</scope>
+            </dependency>
         </dependencies>
     </dependencyManagement>
 
diff --git a/potassium-nitrite/pom.xml b/potassium-nitrite/pom.xml
index f8468cfad..cea167c10 100644
--- a/potassium-nitrite/pom.xml
+++ b/potassium-nitrite/pom.xml
@@ -123,6 +123,11 @@
             <artifactId>log4j-core</artifactId>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>org.jetbrains.kotlinx</groupId>
+            <artifactId>kotlinx-datetime-jvm</artifactId>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 
     <build>
diff --git a/potassium-nitrite/src/main/kotlin/org/dizitart/kno2/Builder.kt b/potassium-nitrite/src/main/kotlin/org/dizitart/kno2/Builder.kt
index eb14b6a4d..21b8cd418 100644
--- a/potassium-nitrite/src/main/kotlin/org/dizitart/kno2/Builder.kt
+++ b/potassium-nitrite/src/main/kotlin/org/dizitart/kno2/Builder.kt
@@ -49,6 +49,23 @@ class Builder internal constructor() {
      */
     var fieldSeparator: String = NitriteConfig.getFieldSeparator()
 
+    /**
+     * Enables/disables the repository type validation for the Nitrite database.
+     * <p>
+     * Repository type validation is a feature in Nitrite that ensures the type of the objects
+     * stored in the repository can be converted to and from [org.dizitart.no2.collection.Document].
+     * <p>
+     * By default, the repository type validation is enabled. If you disable it, and if you try to
+     * store an object that cannot be converted to a [org.dizitart.no2.collection.Document],
+     * then Nitrite will throw an exception during the operation.
+     *
+     * @see org.dizitart.no2.collection.Document
+     * @see org.dizitart.no2.repository.ObjectRepository
+     * @see org.dizitart.no2.common.mapper.EntityConverter
+     * @since 4.3.0
+     */
+    var enableRepositoryValidation = true
+
     /**
      * Loads a [NitriteModule] into the Nitrite database. The module can be used to extend the
      * functionality of Nitrite.
@@ -88,6 +105,10 @@ class Builder internal constructor() {
             builder.schemaVersion(schemaVersion)
         }
 
+        if (!enableRepositoryValidation) {
+            builder.disableRepositoryTypeValidation()
+        }
+
         if (entityConverters.isNotEmpty()) {
             entityConverters.forEach { builder.registerEntityConverter(it) }
         }
diff --git a/potassium-nitrite/src/test/kotlin/org/dizitart/kno2/KotlinXSerializationMapperTest.kt b/potassium-nitrite/src/test/kotlin/org/dizitart/kno2/KotlinXSerializationMapperTest.kt
index 57c8b3678..b098fbe9d 100644
--- a/potassium-nitrite/src/test/kotlin/org/dizitart/kno2/KotlinXSerializationMapperTest.kt
+++ b/potassium-nitrite/src/test/kotlin/org/dizitart/kno2/KotlinXSerializationMapperTest.kt
@@ -23,6 +23,7 @@ import org.dizitart.kno2.filters.eq
 import org.dizitart.kno2.serialization.KotlinXSerializationMapper
 import org.dizitart.no2.collection.Document
 import org.dizitart.no2.common.module.NitriteModule.module
+import org.dizitart.no2.exceptions.ValidationException
 import org.dizitart.no2.mvstore.MVStoreModule
 import org.junit.Test
 import org.slf4j.LoggerFactory
@@ -180,4 +181,51 @@ class KotlinXSerializationMapperTest {
         testData.someArray.forEachIndexed { index, s -> assertEquals(decodedObject.someArray[index], s) }
         assertEquals(testData, decodedObject.copy(someArray = testData.someArray))
     }
-}
\ No newline at end of file
+
+    @Test(expected = ValidationException::class)
+    fun testRepositoryValidationEnabled() {
+        val db = nitrite {
+            loadModule(MVStoreModule(dbPath))
+            loadModule(module(KotlinXSerializationMapper()))
+        }
+
+        val repo = db.getRepository<CacheEntry>()
+        repo.insert(CacheEntry("sha256", kotlinx.datetime.Clock.System.now()))
+        repo.find(CacheEntry::sha256 eq "sha256").firstOrNull().also {
+            assertEquals(it?.sha256, "sha256")
+        }
+        db.close()
+        try {
+            Files.delete(Paths.get(dbPath))
+        } catch (e: Exception) {
+            log.error("Failed to delete db file", e)
+        }
+    }
+
+    @Test
+    fun testRepositoryValidationDisabled() {
+        val db = nitrite {
+            enableRepositoryValidation = false
+            loadModule(MVStoreModule(dbPath))
+            loadModule(module(KotlinXSerializationMapper()))
+        }
+
+        val repo = db.getRepository<CacheEntry>()
+        repo.insert(CacheEntry("sha256", kotlinx.datetime.Clock.System.now()))
+        repo.find(CacheEntry::sha256 eq "sha256").firstOrNull().also {
+            assertEquals(it?.sha256, "sha256")
+        }
+        db.close()
+        try {
+            Files.delete(Paths.get(dbPath))
+        } catch (e: Exception) {
+            log.error("Failed to delete db file", e)
+        }
+    }
+}
+
+@Serializable
+data class CacheEntry(
+    val sha256: String,
+    val lastUpdated: kotlinx.datetime.Instant
+)
\ No newline at end of file