diff --git a/app/services/loft_service.py b/app/services/loft_service.py
index 64914f9..f932361 100644
--- a/app/services/loft_service.py
+++ b/app/services/loft_service.py
@@ -173,14 +173,14 @@ class LoftService(Base):
                 ] + [
                     item.iif(self.solver_run, target.theta) * items[item.id]
                     for item in self.solver_run.items
-                ]) >= target.value - 8, f'max tif theta ({target.theta}) target value {target.value}'
+                ]) >= target.value - 5, f'max tif theta ({target.theta}) target value {target.value}'
                 problem += lpSum([
                     bundle.tif(self.solver_run.irt_model, target.theta) *
                     bundles[bundle.id] for bundle in self.solver_run.bundles
                 ] + [
                     item.iif(self.solver_run, target.theta) * items[item.id]
                     for item in self.solver_run.items
-                ]) <= target.value + 8, f'min tif theta ({target.theta}) target value {target.value}'
+                ]) <= target.value + 5, f'min tif theta ({target.theta}) target value {target.value}'
 
             for target in self.solver_run.objective_function.tcc_targets:
                 # tcc = lpSum([item.irf(self.solver_run, target.theta)*items[item.id]
@@ -192,14 +192,14 @@ class LoftService(Base):
                 ] + [
                     item.irf(self.solver_run, target.theta) * items[item.id]
                     for item in self.solver_run.items
-                ]) >= target.value - 20, f'max tcc theta ({target.theta}) target value {target.value}'
+                ]) >= target.value - 15, f'max tcc theta ({target.theta}) target value {target.value}'
                 problem += lpSum([
                     bundle.trf(self.solver_run.irt_model, target.theta) *
                     bundles[bundle.id] for bundle in self.solver_run.bundles
                 ] + [
                     item.irf(self.solver_run, target.theta) * items[item.id]
                     for item in self.solver_run.items
-                ]) <= target.value + 20, f'min tcc theta ({target.theta}) target value {target.value}'
+                ]) <= target.value + 15, f'min tcc theta ({target.theta}) target value {target.value}'
 
             # solve problem
             logging.info('Solving...')