"This is in line with a previous decision that the security equipment of police officers stationed at Jewish activity centers should be strengthened," national police spokeswoman Jessica Krasser Fremnell said.
The decision comes after the deadly shootings in the Danish capital Copenhagen last weekend, when local police fatally shot a gunman after he attacked a free speech debate and a synagogue.
The shootings left a film director and a Jewish man killed and five police officers injured.
Commenting on the shootings, Lena Posner Körösi, chairwoman of the Jewish Central Council in Sweden, warned of more possible attacks against Jews in Europe.
"It either begins or ends with a Jewish target. This might as well have happened in Stockholm, Gothenburg or Malmö. It could have been a dead Jew in Sweden. It could have been more," she said.
Earlier this week, two men were ordered to remain in custody for 10 days after being charged with helping the Copenhagen shooter.