diff --git a/financer-server/pom.xml b/financer-server/pom.xml
index 0f9f386..1dbe404 100644
--- a/financer-server/pom.xml
+++ b/financer-server/pom.xml
@@ -17,7 +17,7 @@
 
     <properties>
         <packaging.type>jar</packaging.type>
-        <activeProfiles>hsqldb,dev</activeProfiles>
+        <activeProfiles>h2,dev</activeProfiles>
         <deploymentProfile>mk</deploymentProfile>
     </properties>
 
@@ -70,8 +70,8 @@
 
         <!-- Runtime dependencies -->
         <dependency>
-            <groupId>org.hsqldb</groupId>
-            <artifactId>hsqldb</artifactId>
+            <groupId>com.h2database</groupId>
+            <artifactId>h2</artifactId>
             <scope>runtime</scope>
         </dependency>
         <dependency>
diff --git a/financer-server/src/main/resources/config/application-h2.properties b/financer-server/src/main/resources/config/application-h2.properties
new file mode 100644
index 0000000..960c46d
--- /dev/null
+++ b/financer-server/src/main/resources/config/application-h2.properties
@@ -0,0 +1,5 @@
+spring.flyway.locations=classpath:/database/h2,classpath:/database/common
+
+# DataSource
+spring.datasource.url=jdbc:h2:mem:.;DB_CLOSE_DELAY=-1
+spring.datasource.username=sa
\ No newline at end of file
diff --git a/financer-server/src/main/resources/config/application-hsqldb.properties b/financer-server/src/main/resources/config/application-hsqldb.properties
deleted file mode 100644
index 3976d92..0000000
--- a/financer-server/src/main/resources/config/application-hsqldb.properties
+++ /dev/null
@@ -1,6 +0,0 @@
-spring.flyway.locations=classpath:/database/hsqldb,classpath:/database/common
-
-# DataSource
-#spring.datasource.url=jdbc:hsqldb:file:/tmp/financer
-spring.datasource.url=jdbc:hsqldb:mem:.
-spring.datasource.username=sa
\ No newline at end of file
diff --git a/financer-server/src/main/resources/database/hsqldb/V12_0_0__accountGroupsAccount.sql b/financer-server/src/main/resources/database/h2/V12_0_0__accountGroupsAccount.sql
similarity index 73%
rename from financer-server/src/main/resources/database/hsqldb/V12_0_0__accountGroupsAccount.sql
rename to financer-server/src/main/resources/database/h2/V12_0_0__accountGroupsAccount.sql
index 11dd0f4..988c35e 100644
--- a/financer-server/src/main/resources/database/hsqldb/V12_0_0__accountGroupsAccount.sql
+++ b/financer-server/src/main/resources/database/h2/V12_0_0__accountGroupsAccount.sql
@@ -1,3 +1,3 @@
-UPDATE account SET account_group_id = (SELECT id FROM account_group WHERE name = 'Car') WHERE "key" IN ('Car', 'Gas')
+UPDATE account SET account_group_id = (SELECT id FROM account_group WHERE name = 'Car') WHERE "key" IN ('Car', 'Gas');
 
-UPDATE account SET account_group_id = (SELECT id FROM account_group WHERE name = 'Housing') WHERE "key" IN ('Rent', 'FVS', 'Electricity/Water')
\ No newline at end of file
+UPDATE account SET account_group_id = (SELECT id FROM account_group WHERE name = 'Housing') WHERE "key" IN ('Rent', 'FVS', 'Electricity/Water');
\ No newline at end of file
diff --git a/financer-server/src/main/resources/database/hsqldb/V19_0_0__varcharToNvarchar.sql b/financer-server/src/main/resources/database/h2/V19_0_0__varcharToNvarchar.sql
similarity index 100%
rename from financer-server/src/main/resources/database/hsqldb/V19_0_0__varcharToNvarchar.sql
rename to financer-server/src/main/resources/database/h2/V19_0_0__varcharToNvarchar.sql
diff --git a/financer-server/src/main/resources/database/hsqldb/V19_0_1__period.sql b/financer-server/src/main/resources/database/h2/V19_0_1__period.sql
similarity index 83%
rename from financer-server/src/main/resources/database/hsqldb/V19_0_1__period.sql
rename to financer-server/src/main/resources/database/h2/V19_0_1__period.sql
index 39fa41d..8c4a892 100644
--- a/financer-server/src/main/resources/database/hsqldb/V19_0_1__period.sql
+++ b/financer-server/src/main/resources/database/h2/V19_0_1__period.sql
@@ -1,13 +1,13 @@
 -- Account group table
 CREATE TABLE period (
-    id BIGINT NOT NULL PRIMARY KEY IDENTITY,
+    id BIGINT NOT NULL PRIMARY KEY AUTO_INCREMENT,
     type VARCHAR(255) NOT NULL,
     start DATETIME NOT NULL,
     "end" DATETIME
 );
 
 CREATE TABLE link_transaction_period (
-    id BIGINT NOT NULL PRIMARY KEY IDENTITY,
+    id BIGINT NOT NULL PRIMARY KEY AUTO_INCREMENT,
     transaction_id BIGINT NOT NULL,
     period_id BIGINT NOT NULL,
 
diff --git a/financer-server/src/main/resources/database/hsqldb/V19_0_2__accountStatistic.sql b/financer-server/src/main/resources/database/h2/V19_0_2__accountStatistic.sql
similarity index 90%
rename from financer-server/src/main/resources/database/hsqldb/V19_0_2__accountStatistic.sql
rename to financer-server/src/main/resources/database/h2/V19_0_2__accountStatistic.sql
index 09d6407..13e7976 100644
--- a/financer-server/src/main/resources/database/hsqldb/V19_0_2__accountStatistic.sql
+++ b/financer-server/src/main/resources/database/h2/V19_0_2__accountStatistic.sql
@@ -1,6 +1,6 @@
 -- Account statistic table
 CREATE TABLE account_statistic (
-    id BIGINT NOT NULL PRIMARY KEY IDENTITY,
+    id BIGINT NOT NULL PRIMARY KEY AUTO_INCREMENT,
     account_id BIGINT NOT NULL,
     period_id BIGINT NOT NULL,
     spending_total_from BIGINT NOT NULL,
diff --git a/financer-server/src/main/resources/database/hsqldb/V1_0_0__init.sql b/financer-server/src/main/resources/database/h2/V1_0_0__init.sql
similarity index 91%
rename from financer-server/src/main/resources/database/hsqldb/V1_0_0__init.sql
rename to financer-server/src/main/resources/database/h2/V1_0_0__init.sql
index b1a900b..41de92b 100644
--- a/financer-server/src/main/resources/database/hsqldb/V1_0_0__init.sql
+++ b/financer-server/src/main/resources/database/h2/V1_0_0__init.sql
@@ -4,7 +4,7 @@
 
 -- Account table
 CREATE TABLE account (
-    id BIGINT NOT NULL PRIMARY KEY IDENTITY,
+    id BIGINT NOT NULL PRIMARY KEY AUTO_INCREMENT,
     "key" VARCHAR(1000) NOT NULL, --escape keyword "key"
     type VARCHAR(255) NOT NULL,
     status VARCHAR(255) NOT NULL,
@@ -15,7 +15,7 @@ CREATE TABLE account (
 
 -- Recurring transaction table
 CREATE TABLE recurring_transaction (
-    id BIGINT NOT NULL PRIMARY KEY IDENTITY,
+    id BIGINT NOT NULL PRIMARY KEY AUTO_INCREMENT,
     from_account_id BIGINT NOT NULL,
     to_account_id BIGINT NOT NULL,
     description VARCHAR(1000),
@@ -32,7 +32,7 @@ CREATE TABLE recurring_transaction (
 
 -- Transaction table
 CREATE TABLE "transaction" ( --escape keyword "transaction"
-    id BIGINT NOT NULL PRIMARY KEY IDENTITY,
+    id BIGINT NOT NULL PRIMARY KEY AUTO_INCREMENT,
     from_account_id BIGINT NOT NULL,
     to_account_id BIGINT NOT NULL,
     "date" DATE NOT NULL, --escape keyword "date"
diff --git a/financer-server/src/main/resources/database/hsqldb/V27_0_0__taxRelevantFlag.sql b/financer-server/src/main/resources/database/h2/V27_0_0__taxRelevantFlag.sql
similarity index 100%
rename from financer-server/src/main/resources/database/hsqldb/V27_0_0__taxRelevantFlag.sql
rename to financer-server/src/main/resources/database/h2/V27_0_0__taxRelevantFlag.sql
diff --git a/financer-server/src/main/resources/database/hsqldb/V28_0_1__file.sql b/financer-server/src/main/resources/database/h2/V28_0_1__file.sql
similarity index 79%
rename from financer-server/src/main/resources/database/hsqldb/V28_0_1__file.sql
rename to financer-server/src/main/resources/database/h2/V28_0_1__file.sql
index 9b08324..ae976a0 100644
--- a/financer-server/src/main/resources/database/hsqldb/V28_0_1__file.sql
+++ b/financer-server/src/main/resources/database/h2/V28_0_1__file.sql
@@ -1,11 +1,11 @@
 CREATE TABLE file (
-    id BIGINT NOT NULL PRIMARY KEY IDENTITY,
+    id BIGINT NOT NULL PRIMARY KEY AUTO_INCREMENT,
     name NVARCHAR(1000) NOT NULL,
     content NVARCHAR(4000) NOT NULL
 );
 
 CREATE TABLE link_transaction_file (
-    id BIGINT NOT NULL PRIMARY KEY IDENTITY,
+    id BIGINT NOT NULL PRIMARY KEY AUTO_INCREMENT,
     transaction_id BIGINT NOT NULL,
     file_id BIGINT NOT NULL,
 
diff --git a/financer-server/src/main/resources/database/hsqldb/V29_0_0__expenseNeutral.sql b/financer-server/src/main/resources/database/h2/V29_0_0__expenseNeutral.sql
similarity index 100%
rename from financer-server/src/main/resources/database/hsqldb/V29_0_0__expenseNeutral.sql
rename to financer-server/src/main/resources/database/h2/V29_0_0__expenseNeutral.sql
diff --git a/financer-server/src/main/resources/database/hsqldb/V6_0_0__remindFlagRecurringTransaction.sql b/financer-server/src/main/resources/database/h2/V6_0_0__remindFlagRecurringTransaction.sql
similarity index 100%
rename from financer-server/src/main/resources/database/hsqldb/V6_0_0__remindFlagRecurringTransaction.sql
rename to financer-server/src/main/resources/database/h2/V6_0_0__remindFlagRecurringTransaction.sql
diff --git a/financer-server/src/main/resources/database/hsqldb/V7_0_0__accountGroup.sql b/financer-server/src/main/resources/database/h2/V7_0_0__accountGroup.sql
similarity index 89%
rename from financer-server/src/main/resources/database/hsqldb/V7_0_0__accountGroup.sql
rename to financer-server/src/main/resources/database/h2/V7_0_0__accountGroup.sql
index 769184b..bbd5681 100644
--- a/financer-server/src/main/resources/database/hsqldb/V7_0_0__accountGroup.sql
+++ b/financer-server/src/main/resources/database/h2/V7_0_0__accountGroup.sql
@@ -1,6 +1,6 @@
 -- Account group table
 CREATE TABLE account_group (
-    id BIGINT NOT NULL PRIMARY KEY IDENTITY,
+    id BIGINT NOT NULL PRIMARY KEY AUTO_INCREMENT,
     name VARCHAR(1000) NOT NULL,
 
     CONSTRAINT un_account_group_name_key UNIQUE (name)
diff --git a/financer-server/src/test/resources/application-integrationtest.properties b/financer-server/src/test/resources/application-integrationtest.properties
index 9f159fb..a8c1fb6 100644
--- a/financer-server/src/test/resources/application-integrationtest.properties
+++ b/financer-server/src/test/resources/application-integrationtest.properties
@@ -1,5 +1,5 @@
-spring.profiles.active=hsqldb,dev
+spring.profiles.active=h2,dev
 
-spring.datasource.url=jdbc:hsqldb:mem:.
+spring.datasource.url=jdbc:h2:mem:.;DB_CLOSE_DELAY=-1
 spring.datasource.username=sa
-spring.flyway.locations=classpath:/database/hsqldb,classpath:/database/hsqldb/integration,classpath:/database/common
\ No newline at end of file
+spring.flyway.locations=classpath:/database/h2,classpath:/database/h2/integration,classpath:/database/common
\ No newline at end of file
diff --git a/financer-web-client/src/test/resources/application-integrationtest.properties b/financer-web-client/src/test/resources/application-integrationtest.properties
index 1fcad4a..cbb42d2 100644
--- a/financer-web-client/src/test/resources/application-integrationtest.properties
+++ b/financer-web-client/src/test/resources/application-integrationtest.properties
@@ -1,5 +1 @@
 spring.profiles.active=dev
-
-spring.datasource.url=jdbc:hsqldb:mem:.
-spring.datasource.username=sa
-spring.flyway.locations=classpath:/database/hsqldb,classpath:/database/hsqldb/integration,classpath:/database/common