diff --git a/BoardConfig.mk b/BoardConfig.mk
index 0be087781fe5c78e52cbed79484aff2d6acc2ed3..75f9bef52258a66b6be08123e0825a3aeb23c937 100644
--- a/BoardConfig.mk
+++ b/BoardConfig.mk
@@ -153,7 +153,7 @@ TARGET_USERIMAGES_USE_F2FS := true
 ENABLE_VENDOR_RIL_SERVICE := true
 
 # Security patch level
-VENDOR_SECURITY_PATCH := 2023-03-05
+VENDOR_SECURITY_PATCH := 2023-04-05
 
 # SEPolicy
 include device/qcom/sepolicy_vndr/SEPolicy.mk
diff --git a/lineage_FP4.mk b/lineage_FP4.mk
index 9e1ec88830a6b88ef335d49ac39c2efb48e22e7f..9c6a24211574fc255f81161c750f9091fe2ac69e 100644
--- a/lineage_FP4.mk
+++ b/lineage_FP4.mk
@@ -27,10 +27,10 @@ PRODUCT_MANUFACTURER := Fairphone
 
 PRODUCT_SYSTEM_NAME := FP4eea
 
-BUILD_FINGERPRINT := "Fairphone/FP4eea/FP4:12/SKQ1.220201.001/SP25:user/release-keys"
+BUILD_FINGERPRINT := "Fairphone/FP4eea/FP4:12/SKQ1.220201.001/SP28:user/release-keys"
 
 PRODUCT_BUILD_PROP_OVERRIDES += \
     TARGET_PRODUCT=FP4eea \
-    PRIVATE_BUILD_DESC="qssi-user 12 SKQ1.220201.001 SP25 release-keys"
+    PRIVATE_BUILD_DESC="qssi-user 12 SKQ1.220201.001 SP28 release-keys"
 
 PRODUCT_GMS_CLIENTID_BASE := android-alcatel
diff --git a/proprietary-files.txt b/proprietary-files.txt
index a44d5c9205043f50f0d431386d17233bfed589e0..d98edadb2a9469dca5c4ebb3cbe53b31bc164115 100644
--- a/proprietary-files.txt
+++ b/proprietary-files.txt
@@ -1,4 +1,4 @@
-# Unpinned blobs from Fairphone/FP4eea/FP4:12/SKQ1.220201.001/SP25:user/release-keys
+# Unpinned blobs from Fairphone/FP4eea/FP4:12/SKQ1.220201.001/SP28:user/release-keys
 
 # ACDB
 vendor/etc/acdbdata/MTP/lito-lagoon-fp4-snd-card/Bluetooth_cal.acdb:vendor/etc/acdbdata/MTP/lito-lagoonmtp-snd-card/Bluetooth_cal.acdb