diff --git a/certbot-dns-cloudflare/snap/snapcraft.yaml b/certbot-dns-cloudflare/snap/snapcraft.yaml
index e6110e1fb..97d1dab42 100644
--- a/certbot-dns-cloudflare/snap/snapcraft.yaml
+++ b/certbot-dns-cloudflare/snap/snapcraft.yaml
@@ -3,7 +3,7 @@ summary: Cloudflare DNS Authenticator plugin for Certbot
 description: Cloudflare DNS Authenticator plugin for Certbot
 confinement: strict
 grade: devel
-base: core18
+base: core20
 adopt-info: certbot-dns-cloudflare
 
 parts:
@@ -11,7 +11,6 @@ parts:
     plugin: python
     source: .
     constraints: [$SNAPCRAFT_PART_SRC/snap-constraints.txt]
-    python-version: python3
     override-pull: |
         snapcraftctl pull
         snapcraftctl set-version `grep ^version $SNAPCRAFT_PART_SRC/setup.py | cut -f2 -d= | tr -d "'[:space:]"`
@@ -23,4 +22,4 @@ slots:
     interface: content
     content: certbot-1
     read:
-      - $SNAP/lib/python3.6/site-packages
+      - $SNAP/lib/python3.8/site-packages
diff --git a/certbot-dns-cloudxns/snap/snapcraft.yaml b/certbot-dns-cloudxns/snap/snapcraft.yaml
index 2deb1b001..fb60590eb 100644
--- a/certbot-dns-cloudxns/snap/snapcraft.yaml
+++ b/certbot-dns-cloudxns/snap/snapcraft.yaml
@@ -3,7 +3,7 @@ summary: CloudXNS DNS Authenticator plugin for Certbot
 description: CloudXNS DNS Authenticator plugin for Certbot
 confinement: strict
 grade: devel
-base: core18
+base: core20
 adopt-info: certbot-dns-cloudxns
 
 parts:
@@ -11,7 +11,6 @@ parts:
     plugin: python
     source: .
     constraints: [$SNAPCRAFT_PART_SRC/snap-constraints.txt]
-    python-version: python3
     override-pull: |
         snapcraftctl pull
         snapcraftctl set-version `grep ^version $SNAPCRAFT_PART_SRC/setup.py | cut -f2 -d= | tr -d "'[:space:]"`
@@ -23,4 +22,4 @@ slots:
     interface: content
     content: certbot-1
     read:
-      - $SNAP/lib/python3.6/site-packages
+      - $SNAP/lib/python3.8/site-packages
diff --git a/certbot-dns-digitalocean/snap/snapcraft.yaml b/certbot-dns-digitalocean/snap/snapcraft.yaml
index 81e9df3d4..40d05311f 100644
--- a/certbot-dns-digitalocean/snap/snapcraft.yaml
+++ b/certbot-dns-digitalocean/snap/snapcraft.yaml
@@ -3,7 +3,7 @@ summary: DigitalOcean DNS Authenticator plugin for Certbot
 description: DigitalOcean DNS Authenticator plugin for Certbot
 confinement: strict
 grade: devel
-base: core18
+base: core20
 adopt-info: certbot-dns-digitalocean
 
 parts:
@@ -11,7 +11,6 @@ parts:
     plugin: python
     source: .
     constraints: [$SNAPCRAFT_PART_SRC/snap-constraints.txt]
-    python-version: python3
     override-pull: |
         snapcraftctl pull
         snapcraftctl set-version `grep ^version $SNAPCRAFT_PART_SRC/setup.py | cut -f2 -d= | tr -d "'[:space:]"`
@@ -23,4 +22,4 @@ slots:
     interface: content
     content: certbot-1
     read:
-      - $SNAP/lib/python3.6/site-packages
+      - $SNAP/lib/python3.8/site-packages
diff --git a/certbot-dns-dnsimple/snap/snapcraft.yaml b/certbot-dns-dnsimple/snap/snapcraft.yaml
index 7dbcf3e88..2d1d53e02 100644
--- a/certbot-dns-dnsimple/snap/snapcraft.yaml
+++ b/certbot-dns-dnsimple/snap/snapcraft.yaml
@@ -3,7 +3,7 @@ summary: DNSimple DNS Authenticator plugin for Certbot
 description: DNSimple DNS Authenticator plugin for Certbot
 confinement: strict
 grade: devel
-base: core18
+base: core20
 adopt-info: certbot-dns-dnsimple
 
 parts:
@@ -11,7 +11,6 @@ parts:
     plugin: python
     source: .
     constraints: [$SNAPCRAFT_PART_SRC/snap-constraints.txt]
-    python-version: python3
     override-pull: |
         snapcraftctl pull
         snapcraftctl set-version `grep ^version $SNAPCRAFT_PART_SRC/setup.py | cut -f2 -d= | tr -d "'[:space:]"`
@@ -23,4 +22,4 @@ slots:
     interface: content
     content: certbot-1
     read:
-      - $SNAP/lib/python3.6/site-packages
+      - $SNAP/lib/python3.8/site-packages
diff --git a/certbot-dns-dnsmadeeasy/snap/snapcraft.yaml b/certbot-dns-dnsmadeeasy/snap/snapcraft.yaml
index f9dcbcadd..da6ba93be 100644
--- a/certbot-dns-dnsmadeeasy/snap/snapcraft.yaml
+++ b/certbot-dns-dnsmadeeasy/snap/snapcraft.yaml
@@ -3,7 +3,7 @@ summary: DNS Made Easy DNS Authenticator plugin for Certbot
 description: DNS Made Easy DNS Authenticator plugin for Certbot
 confinement: strict
 grade: devel
-base: core18
+base: core20
 adopt-info: certbot-dns-dnsmadeeasy
 
 parts:
@@ -11,7 +11,6 @@ parts:
     plugin: python
     source: .
     constraints: [$SNAPCRAFT_PART_SRC/snap-constraints.txt]
-    python-version: python3
     override-pull: |
         snapcraftctl pull
         snapcraftctl set-version `grep ^version $SNAPCRAFT_PART_SRC/setup.py | cut -f2 -d= | tr -d "'[:space:]"`
@@ -23,4 +22,4 @@ slots:
     interface: content
     content: certbot-1
     read:
-      - $SNAP/lib/python3.6/site-packages
+      - $SNAP/lib/python3.8/site-packages
diff --git a/certbot-dns-gehirn/snap/snapcraft.yaml b/certbot-dns-gehirn/snap/snapcraft.yaml
index e84f19944..be664e597 100644
--- a/certbot-dns-gehirn/snap/snapcraft.yaml
+++ b/certbot-dns-gehirn/snap/snapcraft.yaml
@@ -3,7 +3,7 @@ summary: Gehirn Infrastructure Service DNS Authenticator plugin for Certbot
 description: Gehirn Infrastructure Service DNS Authenticator plugin for Certbot
 confinement: strict
 grade: devel
-base: core18
+base: core20
 adopt-info: certbot-dns-gehirn
 
 parts:
@@ -11,7 +11,6 @@ parts:
     plugin: python
     source: .
     constraints: [$SNAPCRAFT_PART_SRC/snap-constraints.txt]
-    python-version: python3
     override-pull: |
         snapcraftctl pull
         snapcraftctl set-version `grep ^version $SNAPCRAFT_PART_SRC/setup.py | cut -f2 -d= | tr -d "'[:space:]"`
@@ -23,4 +22,4 @@ slots:
     interface: content
     content: certbot-1
     read:
-      - $SNAP/lib/python3.6/site-packages
+      - $SNAP/lib/python3.8/site-packages
diff --git a/certbot-dns-google/snap/snapcraft.yaml b/certbot-dns-google/snap/snapcraft.yaml
index 5c2cdeef1..ead90696c 100644
--- a/certbot-dns-google/snap/snapcraft.yaml
+++ b/certbot-dns-google/snap/snapcraft.yaml
@@ -3,7 +3,7 @@ summary: Google Cloud DNS Authenticator plugin for Certbot
 description: Google Cloud DNS Authenticator plugin for Certbot
 confinement: strict
 grade: devel
-base: core18
+base: core20
 adopt-info: certbot-dns-google
 
 parts:
@@ -11,7 +11,6 @@ parts:
     plugin: python
     source: .
     constraints: [$SNAPCRAFT_PART_SRC/snap-constraints.txt]
-    python-version: python3
     override-pull: |
         snapcraftctl pull
         snapcraftctl set-version `grep ^version $SNAPCRAFT_PART_SRC/setup.py | cut -f2 -d= | tr -d "'[:space:]"`
@@ -23,4 +22,4 @@ slots:
     interface: content
     content: certbot-1
     read:
-      - $SNAP/lib/python3.6/site-packages
+      - $SNAP/lib/python3.8/site-packages
diff --git a/certbot-dns-linode/snap/snapcraft.yaml b/certbot-dns-linode/snap/snapcraft.yaml
index ae2695df3..3895270dc 100644
--- a/certbot-dns-linode/snap/snapcraft.yaml
+++ b/certbot-dns-linode/snap/snapcraft.yaml
@@ -3,7 +3,7 @@ summary: Linode DNS Authenticator plugin for Certbot
 description: Linode DNS Authenticator plugin for Certbot
 confinement: strict
 grade: devel
-base: core18
+base: core20
 adopt-info: certbot-dns-linode
 
 parts:
@@ -11,7 +11,6 @@ parts:
     plugin: python
     source: .
     constraints: [$SNAPCRAFT_PART_SRC/snap-constraints.txt]
-    python-version: python3
     override-pull: |
         snapcraftctl pull
         snapcraftctl set-version `grep ^version $SNAPCRAFT_PART_SRC/setup.py | cut -f2 -d= | tr -d "'[:space:]"`
@@ -23,4 +22,4 @@ slots:
     interface: content
     content: certbot-1
     read:
-      - $SNAP/lib/python3.6/site-packages
+      - $SNAP/lib/python3.8/site-packages
diff --git a/certbot-dns-luadns/snap/snapcraft.yaml b/certbot-dns-luadns/snap/snapcraft.yaml
index 02dad0472..701fd76ff 100644
--- a/certbot-dns-luadns/snap/snapcraft.yaml
+++ b/certbot-dns-luadns/snap/snapcraft.yaml
@@ -3,7 +3,7 @@ summary: LuaDNS Authenticator plugin for Certbot
 description: LuaDNS Authenticator plugin for Certbot
 confinement: strict
 grade: devel
-base: core18
+base: core20
 adopt-info: certbot-dns-luadns
 
 parts:
@@ -11,7 +11,6 @@ parts:
     plugin: python
     source: .
     constraints: [$SNAPCRAFT_PART_SRC/snap-constraints.txt]
-    python-version: python3
     override-pull: |
         snapcraftctl pull
         snapcraftctl set-version `grep ^version $SNAPCRAFT_PART_SRC/setup.py | cut -f2 -d= | tr -d "'[:space:]"`
@@ -23,4 +22,4 @@ slots:
     interface: content
     content: certbot-1
     read:
-      - $SNAP/lib/python3.6/site-packages
+      - $SNAP/lib/python3.8/site-packages
diff --git a/certbot-dns-nsone/snap/snapcraft.yaml b/certbot-dns-nsone/snap/snapcraft.yaml
index d183ed41b..602a8dd03 100644
--- a/certbot-dns-nsone/snap/snapcraft.yaml
+++ b/certbot-dns-nsone/snap/snapcraft.yaml
@@ -3,7 +3,7 @@ summary: NS1 DNS Authenticator plugin for Certbot
 description: NS1 DNS Authenticator plugin for Certbot
 confinement: strict
 grade: devel
-base: core18
+base: core20
 adopt-info: certbot-dns-nsone
 
 parts:
@@ -11,7 +11,6 @@ parts:
     plugin: python
     source: .
     constraints: [$SNAPCRAFT_PART_SRC/snap-constraints.txt]
-    python-version: python3
     override-pull: |
         snapcraftctl pull
         snapcraftctl set-version `grep ^version $SNAPCRAFT_PART_SRC/setup.py | cut -f2 -d= | tr -d "'[:space:]"`
@@ -23,4 +22,4 @@ slots:
     interface: content
     content: certbot-1
     read:
-      - $SNAP/lib/python3.6/site-packages
+      - $SNAP/lib/python3.8/site-packages
diff --git a/certbot-dns-ovh/snap/snapcraft.yaml b/certbot-dns-ovh/snap/snapcraft.yaml
index 8e51e44a5..2949e7951 100644
--- a/certbot-dns-ovh/snap/snapcraft.yaml
+++ b/certbot-dns-ovh/snap/snapcraft.yaml
@@ -3,7 +3,7 @@ summary: OVH DNS Authenticator plugin for Certbot
 description: OVH DNS Authenticator plugin for Certbot
 confinement: strict
 grade: devel
-base: core18
+base: core20
 adopt-info: certbot-dns-ovh
 
 parts:
@@ -11,7 +11,6 @@ parts:
     plugin: python
     source: .
     constraints: [$SNAPCRAFT_PART_SRC/snap-constraints.txt]
-    python-version: python3
     override-pull: |
         snapcraftctl pull
         snapcraftctl set-version `grep ^version $SNAPCRAFT_PART_SRC/setup.py | cut -f2 -d= | tr -d "'[:space:]"`
@@ -23,4 +22,4 @@ slots:
     interface: content
     content: certbot-1
     read:
-      - $SNAP/lib/python3.6/site-packages
+      - $SNAP/lib/python3.8/site-packages
diff --git a/certbot-dns-rfc2136/snap/snapcraft.yaml b/certbot-dns-rfc2136/snap/snapcraft.yaml
index f89bd56d6..762976f52 100644
--- a/certbot-dns-rfc2136/snap/snapcraft.yaml
+++ b/certbot-dns-rfc2136/snap/snapcraft.yaml
@@ -3,7 +3,7 @@ summary: RFC 2136 DNS Authenticator plugin for Certbot
 description: RFC 2136 DNS Authenticator plugin for Certbot
 confinement: strict
 grade: devel
-base: core18
+base: core20
 adopt-info: certbot-dns-rfc2136
 
 parts:
@@ -11,7 +11,6 @@ parts:
     plugin: python
     source: .
     constraints: [$SNAPCRAFT_PART_SRC/snap-constraints.txt]
-    python-version: python3
     override-pull: |
         snapcraftctl pull
         snapcraftctl set-version `grep ^version $SNAPCRAFT_PART_SRC/setup.py | cut -f2 -d= | tr -d "'[:space:]"`
@@ -23,4 +22,4 @@ slots:
     interface: content
     content: certbot-1
     read:
-      - $SNAP/lib/python3.6/site-packages
+      - $SNAP/lib/python3.8/site-packages
diff --git a/certbot-dns-route53/snap/snapcraft.yaml b/certbot-dns-route53/snap/snapcraft.yaml
index fa3ff4c32..a9f23730d 100644
--- a/certbot-dns-route53/snap/snapcraft.yaml
+++ b/certbot-dns-route53/snap/snapcraft.yaml
@@ -3,7 +3,7 @@ summary: Route53 DNS Authenticator plugin for Certbot
 description: Route53 DNS Authenticator plugin for Certbot
 confinement: strict
 grade: devel
-base: core18
+base: core20
 adopt-info: certbot-dns-route53
 
 parts:
@@ -11,7 +11,6 @@ parts:
     plugin: python
     source: .
     constraints: [$SNAPCRAFT_PART_SRC/snap-constraints.txt]
-    python-version: python3
     override-pull: |
         snapcraftctl pull
         snapcraftctl set-version `grep ^version $SNAPCRAFT_PART_SRC/setup.py | cut -f2 -d= | tr -d "'[:space:]"`
@@ -23,4 +22,4 @@ slots:
     interface: content
     content: certbot-1
     read:
-      - $SNAP/lib/python3.6/site-packages
+      - $SNAP/lib/python3.8/site-packages
diff --git a/certbot-dns-sakuracloud/snap/snapcraft.yaml b/certbot-dns-sakuracloud/snap/snapcraft.yaml
index 66659f9e4..bc433c8aa 100644
--- a/certbot-dns-sakuracloud/snap/snapcraft.yaml
+++ b/certbot-dns-sakuracloud/snap/snapcraft.yaml
@@ -3,7 +3,7 @@ summary: Sakura Cloud DNS Authenticator plugin for Certbot
 description: Sakura Cloud DNS Authenticator plugin for Certbot
 confinement: strict
 grade: devel
-base: core18
+base: core20
 adopt-info: certbot-dns-sakuracloud
 
 parts:
@@ -11,7 +11,6 @@ parts:
     plugin: python
     source: .
     constraints: [$SNAPCRAFT_PART_SRC/snap-constraints.txt]
-    python-version: python3
     override-pull: |
         snapcraftctl pull
         snapcraftctl set-version `grep ^version $SNAPCRAFT_PART_SRC/setup.py | cut -f2 -d= | tr -d "'[:space:]"`
@@ -23,4 +22,4 @@ slots:
     interface: content
     content: certbot-1
     read:
-      - $SNAP/lib/python3.6/site-packages
+      - $SNAP/lib/python3.8/site-packages
diff --git a/certbot.wrapper b/certbot.wrapper
index 199191d5f..e5901b8ea 100755
--- a/certbot.wrapper
+++ b/certbot.wrapper
@@ -11,7 +11,7 @@ join() {
     fi
 }
 
-paths=$(for plugin_snap in $(snap connections certbot|sed -n '2,$p'|awk '$1=="content[certbot-1]"{print $3}'|cut -d: -f1); do echo /snap/$plugin_snap/current/lib/python3.6/site-packages; done)
+paths=$(for plugin_snap in $(snap connections certbot|sed -n '2,$p'|awk '$1=="content[certbot-1]"{print $3}'|cut -d: -f1); do echo /snap/$plugin_snap/current/lib/python3.8/site-packages; done)
 export PYTHONPATH=$(join : $PYTHONPATH $paths)
 if [ -z "$PYTHONPATH" ]; then
     unset PYTHONPATH
diff --git a/tools/generate_dnsplugins_snapcraft.sh b/tools/generate_dnsplugins_snapcraft.sh
index b99b0aadc..2e367f89b 100755
--- a/tools/generate_dnsplugins_snapcraft.sh
+++ b/tools/generate_dnsplugins_snapcraft.sh
@@ -15,7 +15,7 @@ summary: ${DESCRIPTION}
 description: ${DESCRIPTION}
 confinement: strict
 grade: devel
-base: core18
+base: core20
 adopt-info: ${PLUGIN}
 
 parts:
@@ -23,7 +23,6 @@ parts:
     plugin: python
     source: .
     constraints: [\$SNAPCRAFT_PART_SRC/snap-constraints.txt]
-    python-version: python3
     override-pull: |
         snapcraftctl pull
         snapcraftctl set-version \`grep ^version \$SNAPCRAFT_PART_SRC/setup.py | cut -f2 -d= | tr -d "'[:space:]"\`
@@ -35,6 +34,6 @@ slots:
     interface: content
     content: certbot-1
     read:
-      - \$SNAP/lib/python3.6/site-packages
+      - \$SNAP/lib/python3.8/site-packages
 EOF
 done