diff --git a/README.md b/README.md
index a6e484c..79699e4 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,7 @@ This code is used to build the linux platform image for the raspberry pi zero to
 1. [Install Docker](https://docs.docker.com/engine/installation/)
 2. `git clone https://github.com/heneault/yocto-pitrezor.git`
 3. `cd yocto-pitrezor`
-4. `sudo ./build-pitrezor.sh TAG` (where TAG is 1.8.3.0 for example, if left blank the script builds latest commit in master branch)
+4. `sudo ./build-pitrezor.sh TAG` (where TAG is 1.9.0.0 for example, if left blank the script builds latest commit in master branch)
 
 This creates file `build/pitrezor-TAG.zip` .
 
diff --git a/meta-pitrezor/recipes-core/pitrezor/pitrezor_git.bb b/meta-pitrezor/recipes-core/pitrezor/pitrezor_git.bb
index 8a9d4f3..46b390f 100644
--- a/meta-pitrezor/recipes-core/pitrezor/pitrezor_git.bb
+++ b/meta-pitrezor/recipes-core/pitrezor/pitrezor_git.bb
@@ -13,7 +13,7 @@ SRC_URI = "git://github.com/heneault/trezor-firmware.git;branch=pitrezor \
            file://pitrezor.config \
           "
 
-SRCREV = "7aed87360748e715704367ef0522070009a142b9"
+SRCREV = "2097dccca9f0a310147dd9ee60fd0dd8c090b412"
 
 S = "${WORKDIR}/git"