diff --git a/targets/nuttx-stm32f4/Makefile b/targets/nuttx-stm32f4/Makefile
index 33d8241779..c7808e3c95 100644
--- a/targets/nuttx-stm32f4/Makefile
+++ b/targets/nuttx-stm32f4/Makefile
@@ -54,7 +54,7 @@ updateobjs:
 cleanlibs: updateobjs
 	rm -f $(OBJS)
 
-clean: cleanlibs
+clean:: cleanlibs
 
 .built: $(LIBS) updateobjs
 
diff --git a/targets/nuttx-stm32f4/Makefile.travis b/targets/nuttx-stm32f4/Makefile.travis
index c6aa8813c6..4c8ed31e75 100644
--- a/targets/nuttx-stm32f4/Makefile.travis
+++ b/targets/nuttx-stm32f4/Makefile.travis
@@ -39,8 +39,8 @@ install-kconfig:
 
 # Fetch nuttx/{apps,nuttx} repositories.
 install-clone-nuttx:
-	git clone https://bitbucket.org/nuttx/apps.git ../apps -b nuttx-7.22
-	git clone https://bitbucket.org/nuttx/nuttx.git ../nuttx -b nuttx-7.22
+	git clone https://bitbucket.org/nuttx/apps.git ../apps -b nuttx-7.27
+	git clone https://bitbucket.org/nuttx/nuttx.git ../nuttx -b nuttx-7.27
 
 # Perform all the necessary (JerryScript-independent) installation steps.
 install-noapt: install-kconfig install-clone-nuttx
diff --git a/targets/nuttx-stm32f4/README.md b/targets/nuttx-stm32f4/README.md
index 4e78407d8e..9155c53497 100644
--- a/targets/nuttx-stm32f4/README.md
+++ b/targets/nuttx-stm32f4/README.md
@@ -7,16 +7,16 @@ This folder contains files to run JerryScript on
 
 #### 1. Setup the build environment for STM32F4-Discovery board
 
-Clone the necessary projects into a `jerry-nuttx` directory. The last tested working version of NuttX is 7.22.
+Clone the necessary projects into a `jerry-nuttx` directory. The last tested working version of NuttX is 7.27.
 
 ```sh
 # Create a base folder for all the projects.
 mkdir jerry-nuttx && cd jerry-nuttx
 
 git clone https://github.com/pando-project/jerryscript.git
-git clone https://bitbucket.org/nuttx/nuttx.git -b nuttx-7.22
-git clone https://bitbucket.org/nuttx/apps.git -b nuttx-7.22
-git clone https://github.com/texane/stlink.git
+git clone https://bitbucket.org/nuttx/nuttx.git -b nuttx-7.27
+git clone https://bitbucket.org/nuttx/apps.git -b nuttx-7.27
+git clone https://github.com/texane/stlink.git -b v1.5.1
 ```
 
 The following directory structure is created after these commands: