diff --git a/instrumentation/spring/spring-boot-autoconfigure/src/main/java/io/opentelemetry/instrumentation/spring/autoconfigure/EmbeddedConfigFile.java b/instrumentation/spring/spring-boot-autoconfigure/src/main/java/io/opentelemetry/instrumentation/spring/autoconfigure/EmbeddedConfigFile.java
index 5fce4844f7af..b2222baf489f 100644
--- a/instrumentation/spring/spring-boot-autoconfigure/src/main/java/io/opentelemetry/instrumentation/spring/autoconfigure/EmbeddedConfigFile.java
+++ b/instrumentation/spring/spring-boot-autoconfigure/src/main/java/io/opentelemetry/instrumentation/spring/autoconfigure/EmbeddedConfigFile.java
@@ -46,24 +46,20 @@ class EmbeddedConfigFile {
   private EmbeddedConfigFile() {}
 
   static OpenTelemetryConfigurationModel extractModel(ConfigurableEnvironment environment) {
-    Map<String, Object> props = extractSpringProperties(environment);
+    Map<String, String> props = extractSpringProperties(environment);
     return convertToOpenTelemetryConfigurationModel(props);
   }
 
-  private static Map<String, Object> extractSpringProperties(ConfigurableEnvironment environment) {
+  private static Map<String, String> extractSpringProperties(ConfigurableEnvironment environment) {
     MutablePropertySources propertySources = environment.getPropertySources();
 
-    Map<String, Object> props = new HashMap<>();
+    Map<String, String> props = new HashMap<>();
     for (PropertySource<?> propertySource : propertySources) {
       if (propertySource instanceof EnumerablePropertySource<?>) {
         for (String propertyName :
             ((EnumerablePropertySource<?>) propertySource).getPropertyNames()) {
           if (propertyName.startsWith("otel.")) {
-            Object property = propertySource.getProperty(propertyName);
-            // Resolve ${} placeholders in String values while preserving types for others
-            if (property instanceof String) {
-              property = environment.resolvePlaceholders((String) property);
-            }
+            String property = environment.getProperty(propertyName);
             if (Objects.equals(property, "")) {
               property = null; // spring returns empty string for yaml null
             }
@@ -100,7 +96,7 @@ private static Map<String, Object> extractSpringProperties(ConfigurableEnvironme
   }
 
   static OpenTelemetryConfigurationModel convertToOpenTelemetryConfigurationModel(
-      Map<String, Object> flatProps) {
+      Map<String, String> flatProps) {
     Map<String, Object> nested = convertFlatPropsToNested(flatProps);
 
     return getObjectMapper().convertValue(nested, OpenTelemetryConfigurationModel.class);
@@ -116,12 +112,12 @@ static ObjectMapper getObjectMapper() {
    * ["one", "two"]}}}}
    */
   @SuppressWarnings("unchecked")
-  static Map<String, Object> convertFlatPropsToNested(Map<String, Object> flatProps) {
+  static Map<String, Object> convertFlatPropsToNested(Map<String, String> flatProps) {
     Map<String, Object> result = new HashMap<>();
 
-    for (Map.Entry<String, Object> entry : flatProps.entrySet()) {
+    for (Map.Entry<String, String> entry : flatProps.entrySet()) {
       String key = entry.getKey();
-      Object value = entry.getValue();
+      String value = entry.getValue();
 
       // Split the key by dots
       String[] parts = key.split("\\.");
diff --git a/instrumentation/spring/spring-boot-autoconfigure/src/main/java/io/opentelemetry/instrumentation/spring/autoconfigure/OpenTelemetryAutoConfiguration.java b/instrumentation/spring/spring-boot-autoconfigure/src/main/java/io/opentelemetry/instrumentation/spring/autoconfigure/OpenTelemetryAutoConfiguration.java
index af79bfbc6154..cf3f4d445225 100644
--- a/instrumentation/spring/spring-boot-autoconfigure/src/main/java/io/opentelemetry/instrumentation/spring/autoconfigure/OpenTelemetryAutoConfiguration.java
+++ b/instrumentation/spring/spring-boot-autoconfigure/src/main/java/io/opentelemetry/instrumentation/spring/autoconfigure/OpenTelemetryAutoConfiguration.java
@@ -8,6 +8,7 @@
 import static java.util.Objects.requireNonNull;
 
 import io.opentelemetry.api.OpenTelemetry;
+import io.opentelemetry.api.incubator.ExtendedOpenTelemetry;
 import io.opentelemetry.api.incubator.config.ConfigProvider;
 import io.opentelemetry.api.trace.TracerProvider;
 import io.opentelemetry.common.ComponentLoader;
@@ -61,7 +62,7 @@
 import org.springframework.core.env.Environment;
 
 /**
- * Create {@link io.opentelemetry.api.OpenTelemetry} bean if bean is missing.
+ * Create {@link OpenTelemetry} bean if bean is missing.
  *
  * <p>Adds span exporter beans to the active tracer provider.
  *
@@ -172,12 +173,12 @@ public OpenTelemetry openTelemetry(
                 model, new OpenTelemetrySdkComponentLoader(applicationContext));
         Runtime.getRuntime().addShutdownHook(new Thread(sdk::close));
         logStart();
-        return sdk;
+        return new SpringOpenTelemetrySdk(sdk, SpringConfigProvider.create(model));
       }
 
       @Bean
-      public ConfigProvider configProvider(OpenTelemetryConfigurationModel model) {
-        return SpringConfigProvider.create(model);
+      public ConfigProvider configProvider(OpenTelemetry openTelemetry) {
+        return ((ExtendedOpenTelemetry) openTelemetry).getConfigProvider();
       }
 
       /**
diff --git a/instrumentation/spring/spring-boot-autoconfigure/src/test/java/io/opentelemetry/instrumentation/spring/autoconfigure/EmbeddedConfigFileTest.java b/instrumentation/spring/spring-boot-autoconfigure/src/test/java/io/opentelemetry/instrumentation/spring/autoconfigure/EmbeddedConfigFileTest.java
index 201fda267d22..2396a1147ad3 100644
--- a/instrumentation/spring/spring-boot-autoconfigure/src/test/java/io/opentelemetry/instrumentation/spring/autoconfigure/EmbeddedConfigFileTest.java
+++ b/instrumentation/spring/spring-boot-autoconfigure/src/test/java/io/opentelemetry/instrumentation/spring/autoconfigure/EmbeddedConfigFileTest.java
@@ -16,7 +16,7 @@ class EmbeddedConfigFileTest {
 
   @Test
   void convertFlatPropsToNested_simpleProperties() {
-    Map<String, Object> flatProps = new HashMap<>();
+    Map<String, String> flatProps = new HashMap<>();
     flatProps.put("resource.service.name", "my-service");
     flatProps.put("traces.exporter", "otlp");
 
@@ -55,7 +55,7 @@ void convertFlatPropsToNested_simpleProperties() {
 
   @Test
   void convertFlatPropsToNested_arrayProperties() {
-    Map<String, Object> flatProps = new HashMap<>();
+    Map<String, String> flatProps = new HashMap<>();
     flatProps.put("instrumentation.java.list[0]", "one");
     flatProps.put("instrumentation.java.list[1]", "two");
     flatProps.put("instrumentation.java.list[2]", "three");
@@ -89,7 +89,7 @@ void convertFlatPropsToNested_arrayProperties() {
 
   @Test
   void convertFlatPropsToNested_mixedPropertiesAndArrays() {
-    Map<String, Object> flatProps = new HashMap<>();
+    Map<String, String> flatProps = new HashMap<>();
     flatProps.put("resource.service.name", "test-service");
     flatProps.put("resource.attributes[0]", "key1=value1");
     flatProps.put("resource.attributes[1]", "key2=value2");
@@ -124,7 +124,7 @@ void convertFlatPropsToNested_mixedPropertiesAndArrays() {
 
   @Test
   void convertFlatPropsToNested_emptyMap() {
-    Map<String, Object> flatProps = new HashMap<>();
+    Map<String, String> flatProps = new HashMap<>();
 
     Map<String, Object> result = EmbeddedConfigFile.convertFlatPropsToNested(flatProps);
 
@@ -133,7 +133,7 @@ void convertFlatPropsToNested_emptyMap() {
 
   @Test
   void convertFlatPropsToNested_singleLevelProperty() {
-    Map<String, Object> flatProps = new HashMap<>();
+    Map<String, String> flatProps = new HashMap<>();
     flatProps.put("enabled", "true");
 
     Map<String, Object> result = EmbeddedConfigFile.convertFlatPropsToNested(flatProps);
@@ -143,7 +143,7 @@ void convertFlatPropsToNested_singleLevelProperty() {
 
   @Test
   void convertFlatPropsToNested_arrayWithGaps() {
-    Map<String, Object> flatProps = new HashMap<>();
+    Map<String, String> flatProps = new HashMap<>();
     flatProps.put("list[0]", "first");
     flatProps.put("list[2]", "third");
 
@@ -161,7 +161,7 @@ void convertFlatPropsToNested_arrayWithGaps() {
 
   @Test
   void convertFlatPropsToNested_deeplyNestedProperties() {
-    Map<String, Object> flatProps = new HashMap<>();
+    Map<String, String> flatProps = new HashMap<>();
     flatProps.put("a.b.c.d.e", "deep-value");
 
     Map<String, Object> result = EmbeddedConfigFile.convertFlatPropsToNested(flatProps);
@@ -183,7 +183,7 @@ void convertFlatPropsToNested_deeplyNestedProperties() {
 
   @Test
   void convertFlatPropsToNested_nestedArrays() {
-    Map<String, Object> flatProps = new HashMap<>();
+    Map<String, String> flatProps = new HashMap<>();
     flatProps.put("outer[0].inner[0]", "value1");
     flatProps.put("outer[0].inner[1]", "value2");
     flatProps.put("outer[1].inner[0]", "value3");
diff --git a/instrumentation/spring/spring-boot-autoconfigure/src/testDeclarativeConfig/java/io/opentelemetry/instrumentation/spring/autoconfigure/DeclarativeConfigTest.java b/instrumentation/spring/spring-boot-autoconfigure/src/testDeclarativeConfig/java/io/opentelemetry/instrumentation/spring/autoconfigure/DeclarativeConfigTest.java
index 7bb5b53f5832..efddae60625f 100644
--- a/instrumentation/spring/spring-boot-autoconfigure/src/testDeclarativeConfig/java/io/opentelemetry/instrumentation/spring/autoconfigure/DeclarativeConfigTest.java
+++ b/instrumentation/spring/spring-boot-autoconfigure/src/testDeclarativeConfig/java/io/opentelemetry/instrumentation/spring/autoconfigure/DeclarativeConfigTest.java
@@ -66,9 +66,13 @@ void initializeProvidersAndOpenTelemetry() {
                         assertThat(c.getDeclarativeConfig("foo"))
                             .isNotNull()
                             .satisfies(
-                                instrumentationConfig ->
-                                    assertThat(instrumentationConfig.getString("bar"))
-                                        .isEqualTo("baz"))));
+                                instrumentationConfig -> {
+                                  assertThat(instrumentationConfig.getString("string_key"))
+                                      .isEqualTo("string_value");
+                                  assertThat(instrumentationConfig.getBoolean("bool_key")).isTrue();
+                                  assertThat(instrumentationConfig.getLong("int_key"))
+                                      .isEqualTo(42);
+                                })));
   }
 
   @Test
diff --git a/instrumentation/spring/spring-boot-autoconfigure/src/testDeclarativeConfig/resources/application.yaml b/instrumentation/spring/spring-boot-autoconfigure/src/testDeclarativeConfig/resources/application.yaml
index 455ea6b8d568..f0a0de4cfffb 100644
--- a/instrumentation/spring/spring-boot-autoconfigure/src/testDeclarativeConfig/resources/application.yaml
+++ b/instrumentation/spring/spring-boot-autoconfigure/src/testDeclarativeConfig/resources/application.yaml
@@ -14,4 +14,7 @@ otel:
   instrumentation/development:
     java:
       foo:
-        bar: baz
+        string_key: string_value
+        int_key: 42
+        bool_key: true
+