diff --git a/targets/TARGET_NORDIC/TARGET_NRF5x/TARGET_NRF52/TARGET_MCU_NRF52832/config/sdk_config.h b/targets/TARGET_NORDIC/TARGET_NRF5x/TARGET_NRF52/TARGET_MCU_NRF52832/config/sdk_config.h
index cca54c6948..b1112d715a 100644
--- a/targets/TARGET_NORDIC/TARGET_NRF5x/TARGET_NRF52/TARGET_MCU_NRF52832/config/sdk_config.h
+++ b/targets/TARGET_NORDIC/TARGET_NRF5x/TARGET_NRF52/TARGET_MCU_NRF52832/config/sdk_config.h
@@ -3908,20 +3908,20 @@
 // <e> NRFX_TWIS_ENABLED - nrfx_twis - TWIS peripheral driver
 //==========================================================
 #ifndef NRFX_TWIS_ENABLED
-#define NRFX_TWIS_ENABLED 0
+#define NRFX_TWIS_ENABLED 1
 #endif
 // <q> NRFX_TWIS0_ENABLED  - Enable TWIS0 instance
  
 
 #ifndef NRFX_TWIS0_ENABLED
-#define NRFX_TWIS0_ENABLED 0
+#define NRFX_TWIS0_ENABLED 1
 #endif
 
 // <q> NRFX_TWIS1_ENABLED  - Enable TWIS1 instance
  
 
 #ifndef NRFX_TWIS1_ENABLED
-#define NRFX_TWIS1_ENABLED 0
+#define NRFX_TWIS1_ENABLED 1
 #endif
 
 // <q> NRFX_TWIS_ASSUME_INIT_AFTER_RESET_ONLY  - Assume that any instance would be initialized only once
diff --git a/targets/TARGET_NORDIC/TARGET_NRF5x/TARGET_NRF52/TARGET_MCU_NRF52840/config/sdk_config.h b/targets/TARGET_NORDIC/TARGET_NRF5x/TARGET_NRF52/TARGET_MCU_NRF52840/config/sdk_config.h
index e25b3086f9..4bef366d3f 100644
--- a/targets/TARGET_NORDIC/TARGET_NRF5x/TARGET_NRF52/TARGET_MCU_NRF52840/config/sdk_config.h
+++ b/targets/TARGET_NORDIC/TARGET_NRF5x/TARGET_NRF52/TARGET_MCU_NRF52840/config/sdk_config.h
@@ -3908,20 +3908,20 @@
 // <e> NRFX_TWIS_ENABLED - nrfx_twis - TWIS peripheral driver
 //==========================================================
 #ifndef NRFX_TWIS_ENABLED
-#define NRFX_TWIS_ENABLED 0
+#define NRFX_TWIS_ENABLED 1
 #endif
 // <q> NRFX_TWIS0_ENABLED  - Enable TWIS0 instance
  
 
 #ifndef NRFX_TWIS0_ENABLED
-#define NRFX_TWIS0_ENABLED 0
+#define NRFX_TWIS0_ENABLED 1
 #endif
 
 // <q> NRFX_TWIS1_ENABLED  - Enable TWIS1 instance
  
 
 #ifndef NRFX_TWIS1_ENABLED
-#define NRFX_TWIS1_ENABLED 0
+#define NRFX_TWIS1_ENABLED 1
 #endif
 
 // <q> NRFX_TWIS_ASSUME_INIT_AFTER_RESET_ONLY  - Assume that any instance would be initialized only once
diff --git a/targets/targets.json b/targets/targets.json
index f51b33039d..596c05474f 100644
--- a/targets/targets.json
+++ b/targets/targets.json
@@ -11183,6 +11183,7 @@
             "FLASH",
             "I2C",
             "I2C_ASYNCH",
+            "I2C_SLAVE",
             "INTERRUPTIN",
             "ITM",
             "LPTICKER",
@@ -11567,6 +11568,7 @@
             "FLASH",
             "I2C",
             "I2C_ASYNCH",
+            "I2C_SLAVE",
             "INTERRUPTIN",
             "ITM",
             "LPTICKER",