diff --git a/.github/workflows/maven-v1-pulls.yml b/.github/workflows/maven-v1-pulls.yml
index cfc5f9ed52..1a68017c23 100644
--- a/.github/workflows/maven-v1-pulls.yml
+++ b/.github/workflows/maven-v1-pulls.yml
@@ -6,8 +6,7 @@ on:
 
 jobs:
   build:
-
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     strategy:
       matrix:
         java: [ 8 ]
diff --git a/.github/workflows/maven-v1.yml b/.github/workflows/maven-v1.yml
index e8a8d30591..5d2460464e 100644
--- a/.github/workflows/maven-v1.yml
+++ b/.github/workflows/maven-v1.yml
@@ -7,7 +7,7 @@ on:
 jobs:
   build:
 
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     strategy:
       matrix:
         java: [ 8 ]
diff --git a/.github/workflows/next-snapshot-v1.yml b/.github/workflows/next-snapshot-v1.yml
index fc1e9c2200..08f840a014 100644
--- a/.github/workflows/next-snapshot-v1.yml
+++ b/.github/workflows/next-snapshot-v1.yml
@@ -7,7 +7,7 @@ on:
 jobs:
   build:
 
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
 
     steps:
     - uses: actions/checkout@v2
diff --git a/.github/workflows/prepare-release-v1.yml b/.github/workflows/prepare-release-v1.yml
index 7c38faedf3..14b99d18f1 100644
--- a/.github/workflows/prepare-release-v1.yml
+++ b/.github/workflows/prepare-release-v1.yml
@@ -7,7 +7,7 @@ on:
 jobs:
   build:
 
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
 
     steps:
     - uses: actions/checkout@v2
diff --git a/.github/workflows/release-v1.yml b/.github/workflows/release-v1.yml
index e9fd7fdd7c..225330eb3a 100644
--- a/.github/workflows/release-v1.yml
+++ b/.github/workflows/release-v1.yml
@@ -7,7 +7,7 @@ on:
 jobs:
   build:
 
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
 
     steps:
     - uses: actions/checkout@v2
diff --git a/modules/swagger-compat-spec-parser/pom.xml b/modules/swagger-compat-spec-parser/pom.xml
index 091918fbfd..1fbd62c408 100644
--- a/modules/swagger-compat-spec-parser/pom.xml
+++ b/modules/swagger-compat-spec-parser/pom.xml
@@ -42,7 +42,7 @@
         <dependency>
             <groupId>org.testng</groupId>
             <artifactId>testng</artifactId>
-            <version>6.8.7</version>
+            <version>${testng-version}</version>
             <scope>test</scope>
             <exclusions>
                 <exclusion>
diff --git a/pom.xml b/pom.xml
index 569193ce6f..683258e624 100644
--- a/pom.xml
+++ b/pom.xml
@@ -393,10 +393,10 @@
     </repositories>
     <properties>
         <!--<maven.compiler.release>8</maven.compiler.release>-->
-        <commons-io-version>2.15.0</commons-io-version>
+        <commons-io-version>2.15.1</commons-io-version>
         <snakeyaml-version>2.2</snakeyaml-version>
         <slf4j-version>2.0.9</slf4j-version>
-        <swagger-core-version>1.6.12</swagger-core-version>
+        <swagger-core-version>1.6.14</swagger-core-version>
         <junit-version>4.13.2</junit-version>
         <testng-version>6.9.6</testng-version>
         <jmockit-version>1.19</jmockit-version>