diff --git a/core/pom.xml b/core/pom.xml
index 994a0b9..b591a3e 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -25,9 +25,9 @@
       <artifactId>commons-csv</artifactId>
     </dependency>
     <dependency>
-      <groupId>org.jetbrains</groupId>
-      <artifactId>annotations</artifactId>
-      <optional>true</optional>
+      <groupId>org.jspecify</groupId>
+      <artifactId>jspecify</artifactId>
+      <scope>provided</scope>
     </dependency>
 
     <dependency>
diff --git a/core/src/main/java/com/sciencesakura/dbsetup/csv/Import.java b/core/src/main/java/com/sciencesakura/dbsetup/csv/Import.java
index 51707f2..d1a24b2 100644
--- a/core/src/main/java/com/sciencesakura/dbsetup/csv/Import.java
+++ b/core/src/main/java/com/sciencesakura/dbsetup/csv/Import.java
@@ -22,7 +22,7 @@
 import java.util.Map;
 import org.apache.commons.csv.CSVFormat;
 import org.apache.commons.csv.CSVParser;
-import org.jetbrains.annotations.NotNull;
+import org.jspecify.annotations.NonNull;
 
 /**
  * An operation which imports the CSV file into the database.
@@ -48,8 +48,8 @@ public final class Import implements Operation {
    * @return the new {@code Import.Builder} instance
    * @throws IllegalArgumentException if the CSV file is not found
    */
-  @NotNull
-  public static Builder csv(@NotNull String location) {
+  @NonNull
+  public static Builder csv(@NonNull String location) {
     var urlLocation = Import.class.getClassLoader()
         .getResource(requireNonNull(location, "location must not be null"));
     if (urlLocation == null) {
@@ -65,8 +65,8 @@ public static Builder csv(@NotNull String location) {
    * @return the new {@code Import.Builder} instance
    * @throws IllegalArgumentException if the TSV file is not found
    */
-  @NotNull
-  public static Builder tsv(@NotNull String location) {
+  @NonNull
+  public static Builder tsv(@NonNull String location) {
     return csv(location).withDelimiter('\t');
   }
 
@@ -186,7 +186,7 @@ private Builder(URL location) {
      *
      * @return the new {@code Import} instance
      */
-    @NotNull
+    @NonNull
     public Import build() {
       if (built) {
         throw new IllegalStateException("already built");
@@ -202,7 +202,7 @@ public Import build() {
      * @param table the table name to import the CSV file
      * @return the reference to this object
      */
-    public Builder into(@NotNull String table) {
+    public Builder into(@NonNull String table) {
       this.table = requireNonNull(table, "table must not be null");
       return this;
     }
@@ -215,7 +215,7 @@ public Builder into(@NotNull String table) {
      * @param charset the character encoding to read the CSV file
      * @return the reference to this object
      */
-    public Builder withCharset(@NotNull Charset charset) {
+    public Builder withCharset(@NonNull Charset charset) {
       this.charset = requireNonNull(charset, "charset must not be null");
       return this;
     }
@@ -228,7 +228,7 @@ public Builder withCharset(@NotNull Charset charset) {
      * @param charset the character encoding to read the CSV file
      * @return the reference to this object
      */
-    public Builder withCharset(@NotNull String charset) {
+    public Builder withCharset(@NonNull String charset) {
       requireNonNull(charset, "charset must not be null");
       this.charset = Charset.forName(charset);
       return this;
@@ -241,7 +241,7 @@ public Builder withCharset(@NotNull String charset) {
      * @param value  the default value (nullable)
      * @return the reference to this object
      */
-    public Builder withDefaultValue(@NotNull String column, Object value) {
+    public Builder withDefaultValue(@NonNull String column, Object value) {
       requireNonNull(column, "column must not be null");
       defaultValues.put(column, value);
       return this;
@@ -268,7 +268,7 @@ public Builder withDelimiter(char delimiter) {
      * @param valueGenerator the value generator to use
      * @return the reference to this object
      */
-    public Builder withGeneratedValue(@NotNull String column, @NotNull ValueGenerator<?> valueGenerator) {
+    public Builder withGeneratedValue(@NonNull String column, @NonNull ValueGenerator<?> valueGenerator) {
       requireNonNull(column, "column must not be null");
       requireNonNull(valueGenerator, "valueGenerator must not be null");
       valueGenerators.put(column, valueGenerator);
@@ -283,7 +283,7 @@ public Builder withGeneratedValue(@NotNull String column, @NotNull ValueGenerato
      * @param headers the headers of the CSV file
      * @return the reference to this object
      */
-    public Builder withHeader(@NotNull Collection<String> headers) {
+    public Builder withHeader(@NonNull Collection<String> headers) {
       requireNonNull(headers, "headers must not be null");
       this.headers = new String[headers.size()];
       var i = 0;
@@ -301,7 +301,7 @@ public Builder withHeader(@NotNull Collection<String> headers) {
      * @param headers the headers of the CSV file
      * @return the reference to this object
      */
-    public Builder withHeader(@NotNull String... headers) {
+    public Builder withHeader(@NonNull String... headers) {
       requireNonNull(headers, "headers must not be null");
       this.headers = new String[headers.length];
       var i = 0;
@@ -319,7 +319,7 @@ public Builder withHeader(@NotNull String... headers) {
      * @param nullString the string to represent null values
      * @return the reference to this object
      */
-    public Builder withNullAs(@NotNull String nullString) {
+    public Builder withNullAs(@NonNull String nullString) {
       this.nullString = requireNonNull(nullString, "nullString must not be null");
       return this;
     }
diff --git a/pom.xml b/pom.xml
index 2586997..bd54037 100644
--- a/pom.xml
+++ b/pom.xml
@@ -66,7 +66,7 @@
     <commons-csv.version>1.14.1</commons-csv.version>
     <dbsetup.version>2.1.0</dbsetup.version>
     <h2.version>2.4.240</h2.version>
-    <jetbrains-annotations.version>13.0</jetbrains-annotations.version>
+    <jspecify.version>1.0.0</jspecify.version>
     <junit-jupiter.version>6.0.3</junit-jupiter.version>
   </properties>
 
@@ -117,11 +117,6 @@
         <artifactId>assertj-db</artifactId>
         <version>${assertj-db.version}</version>
       </dependency>
-      <dependency>
-        <groupId>org.jetbrains</groupId>
-        <artifactId>annotations</artifactId>
-        <version>${jetbrains-annotations.version}</version>
-      </dependency>
       <dependency>
         <groupId>org.jetbrains.kotlin</groupId>
         <artifactId>kotlin-stdlib</artifactId>
@@ -132,6 +127,11 @@
         <artifactId>kotlin-test-junit5</artifactId>
         <version>${kotlin.version}</version>
       </dependency>
+      <dependency>
+        <groupId>org.jspecify</groupId>
+        <artifactId>jspecify</artifactId>
+        <version>${jspecify.version}</version>
+      </dependency>
       <dependency>
         <groupId>org.junit.jupiter</groupId>
         <artifactId>junit-jupiter</artifactId>