diff --git a/google-apis-common/src/serde.rs b/google-apis-common/src/serde.rs
index 622a60a215..84be4a2a28 100644
--- a/google-apis-common/src/serde.rs
+++ b/google-apis-common/src/serde.rs
@@ -170,7 +170,13 @@ pub mod standard_base64 {
             D: Deserializer<'de>,
         {
             let s: Cow<str> = Deserialize::deserialize(deserializer)?;
-            base64::prelude::BASE64_STANDARD.decode(s.as_ref()).map_err(serde::de::Error::custom)
+            match base64::prelude::BASE64_STANDARD.decode(s.as_ref()) {
+                Ok(decoded) => Ok(decoded),
+                Err(first_err) => match general_purpose::URL_SAFE.decode(s.as_ref()) {
+                    Ok(decoded) => Ok(decoded),
+                    Err(_) => Err(serde::de::Error::custom(first_err))
+                }
+            }
         }
     }
 }
@@ -202,7 +208,13 @@ pub mod urlsafe_base64 {
             D: Deserializer<'de>,
         {
             let s: Cow<str> = Deserialize::deserialize(deserializer)?;
-            base64::prelude::BASE64_URL_SAFE.decode(s.as_ref()).map_err(serde::de::Error::custom)
+            match base64::prelude::URL_SAFE.decode(s.as_ref()) {
+                Ok(decoded) => Ok(decoded),
+                Err(first_err) => match general_purpose::URL_STANDARD.decode(s.as_ref()) {
+                    Ok(decoded) => Ok(decoded),
+                    Err(_) => Err(serde::de::Error::custom(first_err))
+                }
+            }
         }
     }
 }