diff --git a/src/energy_usage.spec b/src/energy_usage.spec
index 995ca0c..72a0ff7 100644
--- a/src/energy_usage.spec
+++ b/src/energy_usage.spec
@@ -1,3 +1,4 @@
+import sys ; sys.setrecursionlimit(sys.getrecursionlimit() * 5)
 block_cipher = None
 
 
diff --git a/src/requirements.txt b/src/requirements.txt
index 62487dc..de97d80 100644
--- a/src/requirements.txt
+++ b/src/requirements.txt
@@ -1,5 +1,6 @@
-awattar
-pandas
-netznoe-smartmeter-portal-api
-openpyxl
-argparse
\ No newline at end of file
+awattar==0.2.1
+pandas==2.0.2
+netznoe-smartmeter-portal-api==1.0.2 
+openpyxl==3.1.2 
+argparse==1.4.0
+chardet==5.1.0