diff --git a/assembler_tools/hec-assembler-tools/requirements.txt b/assembler_tools/hec-assembler-tools/requirements.txt
index a2ed2e1c..f987d6d7 100644
--- a/assembler_tools/hec-assembler-tools/requirements.txt
+++ b/assembler_tools/hec-assembler-tools/requirements.txt
@@ -7,7 +7,7 @@ matplotlib==3.7.1
 networkx==3.0
 numpy==1.24.2
 packaging==23.0
-Pillow==12.1.1
+Pillow==12.2.0
 pytest==8.4.0
 python-dateutil==2.8.2
 PyYAML==6.0
diff --git a/p-isa_tools/kerngen/requirements.txt b/p-isa_tools/kerngen/requirements.txt
index ee8caccc..04abc5db 100644
--- a/p-isa_tools/kerngen/requirements.txt
+++ b/p-isa_tools/kerngen/requirements.txt
@@ -3,7 +3,7 @@
 pydantic ~= 1.10.22
 
 # for dev / commits
-black ~= 25.1
+black ~= 26.3
 pylint ~= 3.3
 
 # for testing